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Recurso libre

A data mining approach to computational taxonomy
Perichinsky, Gregorio - García Martínez, Ramón

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	This study investigates an approach of knowledge discovery and data mining in insufficient databases. An application of Computational Taxonomy analysis demonstrates that the approach is effective in such a data mining process. The approach is characterized by the use ot…
Fecha:	2012-10-10
Recurso:	Unversidad Nacional de La Plata

Recurso libre

A hybrid data structure for searching in metric spaces
Herrera, Norma Edith - Reyes, Nora Susana - Chávez, Edgar

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The concept of “approximate” searching has applications in a vast number of fields. Some examples are non-traditional databases (e. g. storing images, fingerprints or audio clips, where the concept of exact search is of no use and we search instead…
Fecha:	2012-09-20
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Identifying cognitive aspects to improve business process reengineering
Martín, Adriana - Cechich, Alejandra

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Knowledge-intensive processes are widely used to recover from errors, handle exceptional cases and complaints, and to improve or adapt a process itself. In this context, evolved Business-Process Reengineering (BPR) techniques are changing to give some answers to this reality. In…
Fecha:	2012-10-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Using fuzzy sets to analyse personal preferences on groupware tools
Aranda, Gabriela N. - Cechich, Alejandra - Vizcaíno, Aurora - Castro-Schez, José J.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	When stakeholders are geographically distributed communication presents new challenges for software engineering community. In order to improve communication between stakeholders, we have previously proposed to apply learning style models to characterise the way people interact. In this work we enhance…
Fecha:	2012-10-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Model checking RAISE applicative specifications
Perna, Juan I. - George, Chris W.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Ensuring the correctness of a given software component has become a crucial aspect in Software Engineering and the Model Checking technique provides a fully automated way to achieve this goal. In particular, the usage of Model Checking in formal languages…
Fecha:	2012-10-09
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Integrating federated information sources through the use of ontologies
Buccella, Agustina - Cechich, Alejandra - Penabad, Miguel R. - Rodriguez, Francisco J. - Brisaboa, Nieves R.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Ontologies serve as a mean to establish a conceptually concise basis for communicating knowledge for many purposes. Within the information integration area, ontologies are useful to solve heterogeneity problems. They provide a set of knowledge terms, including the vocabulary, the…
Fecha:	2012-09-20
Recurso:	Unversidad Nacional de La Plata

Recurso libre

Taking advantages of ontology and contexts to determine similarity of data
Buccella, Agustina - Cechich, Alejandra - Rodríguez Brisaboa, Nieves

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Data integration is the process of unifying data sharing some common semantics but are originated from unrelated sources. In our work we consider these sources are autonomous, heterogeneous and they are physically distributed. These three characteristics make the integration task…
Fecha:	2012-10-11
Recurso:	Unversidad Nacional de La Plata

Recurso libre

EMTPL and its relation to first order logic
Cobo, María Laura - Falappa, Marcelo Alejandro

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Time and change are notions that seems unavoidable in some areas of work and investigation, languages that can deal with these notions are necessary. At the same time, methods for a proper time handling are quite complex, mainly because problem’s…
Fecha:	2012-10-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

An extension of ArgoUML for the incorporation of profiles
Pryor, Jane - Marcos, Claudia A. - Belloni, Edgardo A.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The Unified Modeling Language (UML) is a language for visualizing, specifying, constructing, and documenting the artifacts of a software-intensive system. UML supports the most typical software modeling problems; however, due to the diversity of software development domains, there may be…
Fecha:	2012-10-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

10.

Fuzzy prolog with default knowledge
Vaucheret, Claudio A.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	In omplete information is a problem in many aspe ts of a tual environments. Further- more, in many s enarios the knowledge is not represented in a risp way. It is ommon to nd fuzzy on epts or problems with…
Fecha:	2012-10-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

11.

Characterizing semantic web services
Moyano, Marcelo - Buccella, Agustina - Cechich, Alejandra - Estevez, Elsa Clara

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Semantic Web is an extension of the current web in which data contained in the web documents are machine-understandable. On the other hand, Web Services provide a new model of the web in which sites exchange dynamic information on demand.
Fecha:	2012-10-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

12.

Building dynamic WAP applications using UWE
Soto, Ricardo - Rodríguez, Nibaldo - Palma, Wenceslao

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The great advance of the communications and the importance gained by the mobile systems have increased the development of WAP (Wireless Application Protocol) applications, nevertheless at the present time do not exist methodologies specifically designed for the WAP applications development…
Fecha:	2012-10-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

13.

Assessing the completeness of biodiversity inventories: an example from Bañados del Este Biosphere Reserve, Uruguay, Evaluando cuán exhaustivos son los inventarios de biodiversidad: un ejemplo de la Reserva de la Biosfera de Bañados del Este, Uruguay
Soutullo Bugallo, Álvaro Alberto

Formato:	info:eu-repo/semantics/article
Enlaces:	Se evaluó el rendimiento de cinco índices no paramétricos de riqueza de especies (ICE, Jack1, Jack2, Chao2 y Bootstrap) utilizando inventarios disponibles para tres grupos de vertebrados dentro de la Reserva de Biósfera Bañados del Este, Uruguay. Los datos utilizados…
Fecha:	2008-06-06
Recurso:	RUA Docencia

Recurso libre

14.

IRRI Library: International Rice Research Institute
The International Rice Research Intitute Fiipinas

Formato:	Biblioteca virtual
Enlaces:	Descripción completa.
Fecha:	2012-11-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

15.

A very early estimation of software development time and effort using neural networks
Luna, Carlos Daniel - Segovia, Javier - Salvetto, Pedro F. - Martínez, Milton F.

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	In spite of years of research and development, formal structured estimation of time and effort required to develop a Management Information System (MIS) is still an open problem. Usual estimation techniques applied by now are supported by the not so…
Fecha:	2012-10-12
Recurso:	Unversidad Nacional de La Plata

Recurso libre

16.

Software process improvement behavior of small and medium organizations in Argentina
Colla, Pedro E. - Montagna, Jorge Marcelo

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Este artículo reporta el trabajo de investigación realizado en base a datos extraídos de la Encuesta Anual realizada por la CESSI durante el año 2007 entre organizaciones dedicadas al desarrollo de Software en Argentina. Si bien la temática de mejora…
Fecha:	2012-10-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

17.

Ontologies for the semantic web
Vallés, María Clara - Fillottrani, Pablo Rubén

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	The Semantic Web attempts to reach a state in the future where everything on the Web will no longer be only machine-readable, but also machine-understandable. An ontology is an explicit specification of a conceptualization. A conceptualization is an abstract, simplified…
Fecha:	2012-09-07
Recurso:	Unversidad Nacional de La Plata

Recurso libre

18.

Proposal of an ontology based web search engine
Deco, Claudia - Bender, Cristina - Ponce, Adrián

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	When users search for information in a web site, sometimes they do not get what they want. Assuming that the scope where the search take place works fine, there are some problems caused by the way the user interact with…
Fecha:	2012-10-01
Recurso:	Unversidad Nacional de La Plata

Recurso libre

19.

Semantic Interoperability Middleware – enabling collaborative networks in public sector
Sanchez, Alejandro - Estevez, Elsa Clara - Janowski, Thomas - Ojo, Adegboyega

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Electronic Government initiatives, such as seamless public services delivered at one-stop government portals, require establishing collaborative networks among public- and private-sector organizations. However, semantic interoperability problems emerge as these organizations may differ in the terms and meanings they use to…
Fecha:	2012-10-03
Recurso:	Unversidad Nacional de La Plata

Recurso libre

20.

Temporal validation of extended workflow processes by means Petri Nets with Clocks
Riesco, Daniel Eduardo - Vilallonga, Gabriel Domingo - Montejano, Germán Antonio - Uzal, Roberto - Welch, Daniel - Gallina, Sergio Hilario

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	At present the business processes have temporary requirements within their specifications. Logistics, e-commerce, are examples of these, among others. The time involved in business processes is important regarding the interaction of the actors. The sound of the technology involved in…
Fecha:	2012-10-03
Recurso:	Unversidad Nacional de La Plata

Recurso libre

21.

An integrated improvement framework for sharing assessment lessons learned
Rubio, Diego Martín - Andriano, Natalia Valeria - Ruiz de Mendarozqueta, Alvaro - Bartó, Carlos

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Nowadays, an increasing number of companies are using process improvement models as a mean to improve the quality of their processes and therefore the quality of their products and services. Although various improvement frameworks exist that provide organizations with aids…
Fecha:	2012-10-03
Recurso:	Unversidad Nacional de La Plata

Recurso libre

22.

Lib4RI: Library for the Research Institutes within the ETH Domain: Eawag, Empa, PSI & WSL.
Research Institutes within the ETH Domain: Eawag - Empa - PSI & WSL

Formato:	Biblioteca virtual
Enlaces:	Descripción completa.
Fecha:	2012-11-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

23.

Driving to a fast IMS feature vector computing
Fernández, Jacqueline - Guerrero, Roberto A. - Miranda, Natalia - Piccoli, Fabiana

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	La creciente cantidad de imágenes transmitidas a través de Internet ha llevado al desarrollo de Sistemas de Minería de Imágenes de propósito general. La performance de un SMI depende en gran medida de una rápida y buena especificación del vector…
Fecha:	2012-10-01
Recurso:	Unversidad Nacional de La Plata

Recurso libre

24.

Antifouling effect of two saturated copper coatings applied on carbon steel structures, Efecto antifouling de dos cubiertas saturadas de cobre aplicadas sobre estructuras de acero al carbono
Guiamet, Patricia - Saravia, Sandra Gómez de

Formato:	Articulo, Articulo
Enlaces:	Biofouling is the colonization of man-made substrata by sessile organisms. The aim of this paper is to evaluate the performance of two antifouling saturated copper coating. Bioassays were can-ied out at a harbor in Argentine (38°02'S-57°32'W). During six months, one…
Fecha:	2013-09-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

25.

Combining methods for searches in nested metric spaces
Gercek, Hugo - Reyes, Nora Susana - Deco, Claudia - Bender, Cristina - Salvetti, Mariano

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	Most search methods in metric spaces assume that the topology of the object collection is reasonably regular. However, there exist nested metric spaces, where objects in the collection can be grouped into clusters or subspaces, in such a way that…
Fecha:	2012-07-18
Recurso:	Unversidad Nacional de La Plata

Recurso libre

26.

Decision support system for seismic risks
Somodevilla, María J. - Nava, Angélica - Pineda, Ivo H. - Priego, Ángeles Belém - Castillo, Esteban

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	This paper focuses on prediction and prevention of seismic risk through a system for decision making. Data Warehousing and OLAP operations are applied, together with, data mining tools like association rules, decision trees and clustering to predict aspects such as…
Fecha:	2012-07-18
Recurso:	Unversidad Nacional de La Plata

Recurso libre

27.

Integration of web-based forms with ontologies in the semantic web
Gómez, Sergio Alejandro - Chesñevar, Carlos Iván - Simari, Guillermo Ricardo

Formato:	Objeto de conferencia, Objeto de conferencia
Enlaces:	La noción de formularios como una manera de organizar y presentar datos ha sido usada desde el comienzo de la World Wide Web. Los formularios web han evolucionado junto con el desarrollo de nuevos lenguajes de marcado, en los cuales…
Fecha:	2012-09-28
Recurso:	Unversidad Nacional de La Plata

Recurso libre

28.

Index structures for distributed text databases
Marin Cahiuan, Juan Mauricio

Formato:	Articulo, Articulo
Enlaces:	The Web has became an obiquitous resource for distributed computing making it relevant to investigate new ways of providing efficient access to services available at dedicated sites. Efficiency is an ever-increasing demand which can be only satisfied with the development…
Fecha:	2004-08-10
Recurso:	Unversidad Nacional de La Plata

Recurso libre

29.

Two new species and distribution records of the genus Acroleucus in Mexico (Hemiptera: Heteroptera: Lygaeidae: Lygaeinae).
Brailovsky, H. - Cervantes, L

Formato:	Artículo
Enlaces:	The genus Acroleucus Stål from México is revised. Two new species A. calvatus and A. tensus are described and illustrated. New distribution records are presented, as well as comments on the host plants for some of the species. A revised…
Fecha:	2013-11-20
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

30.

Trends in tariff reforms and trends in the structure of wages
Galiani, Sebastian - Porto, Guido

Formato:	Articulo, Documento de trabajo
Enlaces:	Este trabajo aporta nuevas evidencias sobre el impacto de las reformas comerciales sobre los salarios. En primer lugar, se introduce un modelo de comercio que combina un mecanismo de fijación de salarios no competitivo debido a la existencia de sindicatos,…
Fecha:	2012-02-23
Recurso:	Unversidad Nacional de La Plata

Recurso libre

31.

Missing mixed mode: elemental structures, Estructuras básicas de los valores perdidos en encuestas con modos mixtos
Alaminos Chica, Antonio

Formato:	info:eu-repo/semantics/annotation
Enlaces:	One of the main concerns is the nature of the missing values. Let’s consider extremes for simplicity. If missing at random we have not to care about. But if missing shows structures that covariate with substantive variables we have to…
Fecha:	2013-01-16
Recurso:	RUA Docencia

Recurso libre

32.

An ontology approach to data integration
Buccella, Agustina - Cechich, Alejandra - Rodríguez Brisaboa, Nieves

Formato:	Articulo, Articulo
Enlaces:	The term Federated Databases refers to the data integration of distributed, autonomous and heterogeneous databases. However, a federation can also include information systems, not only databases. At integrating data, several issues must be addressed. Here, we focus on the problem…
Fecha:	2004-05-21
Recurso:	Unversidad Nacional de La Plata

Recurso libre

33.

Sistema automático de adquisición de datos para un medidor de deformación
Espinosa Ramón, Alfonso - Flores Cifuentes, Fernando

Formato:	Article
Enlaces:	El presente artículo describe un sistema de adquisición de datos para un medidor de deformación. Se presenta el análisis del diseño de la circuitería y la programación, los resultados obtenidos y finalmente algunas conclusiones.
Fecha:	2007-05-23
Recurso:	Escuela Politécnica Nacional

Recurso libre

34.

Contributions to social security in Argentina, Chile and Uruguay: densities, transitions and duration
Sanromán, Graciela - Rossi, Ianina - Grushka, Carlos - Fajnzylber, Eduardo - Apella, Ignacio - Forteza, Álvaro

Formato:	Articulo, Articulo
Enlaces:	Los programas de pensiones latinoamericanos tienen baja cobertura. Utilizando paneles de registros administrativos de Argentina, Chile y Uruguay, caracterizamos las historias de contribución de la población. Construimos tres indicadores: densidad de cotización, tasas de transición y duración de los períodos…
Fecha:	2012-01-03
Recurso:	Unversidad Nacional de La Plata

Recurso libre

35.

Applying aspect oriented technology to relational data bases: The replication case, Tecnología aplicada a aspectos en base de datos relacionales: El caso de replicación
Fernando Asteasuain; Universidad de Buenos Aires - Adeel Javed; University of Central Punjab

Formato:	,
Enlaces:	AbstractDue to aspect-oriented mechanisms explosion, their concepts arrive to distributed systems tackling concepts as security, persistence, or synchronization, especially in middleware approaches. Regarding distributed databases, the research has been focused mainly on object-oriented databases. Based on the great impact of…
Fecha:	2011-06-20
Recurso:	Ingeniería y desarrollo

Recurso libre

36.

Four new additions to the araneofauna of Guanajuato state, Mexico
ARENAS-MONROY,José Carlos - GARCÍA-BALDERAS,Christian Martin - LUCIO-PALACIO,Cesar Raziel

Formato:	journal article
Enlaces:	Se presentan los datos de recolecta de cuatro nuevos registros de arañas para el estado de Guanajuato: Argiope argentata (Fabricius 1775), Castianeira dorsata (Banks 1898), C. plorans (O.P.Cambridge 1898) y Selenops gracilis Muma 1953. Adicionalmente, se proporcionan algunos datos de…
Fecha:	2012-08-01
Recurso:	SCIELO

Recurso libre

37.

Integrating the development of data mining and data warehouses via model-driven engineering
Zubcoff Vallejo, José Jacobo - Pardillo Vela, Jesús - Mazón López, José Norberto - Trujillo Mondéjar, Juan Carlos

Formato:	info:eu-repo/semantics/article
Enlaces:	Data mining is one of the most important analysis techniques to automatically extract knowledge from large amount of data. Nowadays, data mining is based on low-level specifications of the employed techniques typically bounded to a specific analysis platform. Therefore, data…
Fecha:	2012-03-08
Recurso:	RUA Docencia

Recurso libre

38.

Educación en valores a partir del evangelio de Mateo. Propuesta de formación para los niños y niñas de sexto y séptimo de educación general básica en la Escuela "Agustín María León" de la parroquia Canelos, Provincia de Pastaza.
Vargas Vargas, Oscar Arnulfo

Formato:	Thesis
Enlaces:	El presente trabajo de grado, fruto de la investigación con el tema “Educación en Valores a partir del Evangelio de Mateo. Propuesta de formación para los niños y niñas de sexto y séptimo de Educación General Básica”, realizada en la…
Fecha:	2013-03-06
Recurso:	Universidad Politécnica Salesiana

Recurso libre

39.

A cryptography method employing a new mathematical paradigm for public keys schemes
Ribeiro, Vinicius Gadis - Weber, Raul Fernando

Formato:	Articulo, Articulo
Enlaces:	blic Keys Schemes usually generate two pairs of keys that bear some mathematical relation-usually, a relation of the field known as Number Theory. Identifying a key from another that is given is a problem of great difficulty. This paper presents…
Fecha:	2004-12-01
Recurso:	Unversidad Nacional de La Plata

Recurso libre

40.

Development of a relational database management system
Ruiz, Anabel Natalia - Maldonado, Calixto - Martínez Spessot, Cesar Ignacio

Formato:	Articulo, Articulo
Enlaces:	The studies of Relational Data Base Management Systems and Databases constitute nowadays a main tren of investigation in large businesses and universities of the entire world. The creation of a data base engine keeps being a challenge since there are…
Fecha:	2004-05-19
Recurso:	Unversidad Nacional de La Plata

Recurso libre

41.

Weather Radar Estimations Feeding an Artificial Neural Network Model, Weather Radar Estimations Feeding an Artificial Neural Network Model
Cerda Villafaña, Gustavo - Ledesma, Sergio - Han, Dawei

Formato:	Artículo revisado por pares, Investigación, Research
Enlaces:	The application of ANNs (Artifi cial Neural Networks) has been studied by many researchers in modelling rainfall runoff processes. However, the work so far has been focused on the rainfall data from traditional raingauges. Weather radar is a modern technology…
Fecha:	2012-02-08
Recurso:	Acta Universitaria

Recurso libre

42.

A Method to Ease the Deployment of Web Applications that Involve Database Systems, A Method to Ease the Deployment of Web Applications that Involve Database Systems
Ledesma, Sergio - Hernández Fusilier, Donato - Vega Corona, Antonio - Cervantes Aviña, Juan Gabriel

Formato:	Artículo revisado por pares, Investigación, Research
Enlaces:	El crecimiento continuo de la Internet ha permitido a las personas, alrededor de todo mundo, realizar transacciones en línea, buscar información o navegar usando el explorador de la Web. A medida que más gente se siente cómoda usando los exploradores…
Fecha:	2012-02-09
Recurso:	Acta Universitaria

Recurso libre

43.

Environment for the simulation of different ACP and error recovery in Distributed Data Bases
Ruscuni, Sebastián - Bertone, Rodolfo Alfredo

Formato:	Articulo, Articulo
Enlaces:	This paper presents an evolution of a simulation environment where situations in which a DDB should maintain data integrity are modeled and implemented. These situations include failures taking place during transactions, and the focus is mainly on the utilization and…
Fecha:	2004-03-31
Recurso:	Unversidad Nacional de La Plata

Recurso libre

44.

A new nomenclatural combination in Malva L. (Malvaceae)
Juan Gallardo, Ana Isabel - Crespo Villalba, Manuel Benito

Formato:	info:eu-repo/semantics/article
Enlaces:	The name Lavatera x columbretensis, recently proposed for a hybrid growing in the Columbretes Archipelago (Castellón, E of Spain), is transferred to Malva. Additional data on nomenclature of other related taxa of ‘L. sect. Anthema’ and ‘L. sect. Axolopha’, are…
Fecha:	2012-05-11
Recurso:	RUA Docencia

Recurso libre

45.

Mertz Library@The New York Botanical Garden
New York Botanical Garden

Formato:	Biblioteca virtual
Enlaces:	Descripción completa.
Fecha:	2012-11-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

46.

Tropicos
Missouri Botanical Garden

Formato:	Repositorio
Enlaces:	Descripción completa.
Fecha:	2012-11-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

47.

Animal Base
Deutsche Forschungsgemeinschaft DFG

Formato:	Repositorio
Enlaces:	Descripción completa.
Fecha:	2012-11-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

48.

The Phycology.Net
Bayerisches Landesamt für Wasserwirtschaft - Botanische Staatssammlung München - University of Bayreuth Department of Mycology

Formato:	Biblioteca virtual
Enlaces:	Descripción completa.
Fecha:	2012-11-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

49.

Clinical study case a combination of post traumatic stress and dysthymia.
Carrera Flores, Paula

Formato:	Tesis
Enlaces:	La Terapia Cognitivo Conductual reduce los síntomas tanto de depresión como ansiedad a un nivel más rápido que cualquier otra terapia (Malkinson, 2010). El sujeto a participar en este estudio de caso es una mujer que cumple con los criterios…
Fecha:	2013-07-03
Recurso:	Universidad San Francisco de Quito

Recurso libre

50.

Introducción a las bases de datos: fundamentos y diseño, Introduction to databases: fundamentals and design
Bertone, Rodolfo Alfredo - Thomas, Pablo Javier

Formato:	Articulo, Revision
Enlaces:	The main purpose of this book is to present the contents of an introductory course in databases. In this regard, one can find a number of material validity and recognized different scopes. This work is developed under the guidelines that…
Fecha:	2012-10-09
Recurso:	Unversidad Nacional de La Plata