1.
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HiN. Alexander von Humboldt im Netz
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2.
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Gayana (Concepción)
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3.
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Estudios Geologicos
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4.
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Arbor : Ciencia, Pensamiento y Cultura
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5.
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Le Matematiche
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6.
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Geologica Belgica
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7.
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International Journal of Algebra
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8.
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International Journal of Mathematical Analysis
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9.
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International Journal of Contemporary Mathematical Sciences
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10.
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Advanced Studies in Theoretical Physics
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