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1BookPublished in 2019Repositorio Universidad Nacional de Colombia
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2BookPublished in 2012Repositorio Universidad Nacional de Colombia
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3Article of journalPublished in 2001Repositorio Universidad Nacional de Colombia
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4BookPublished in 1987Repositorio Universidad Nacional de Colombia
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5Article of journalPublished in 2000Repositorio Universidad Nacional de Colombia
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6BookPublished in 1996Repositorio Universidad Nacional de Colombia
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8
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9Article of journalPublished in 2001Repositorio Universidad Nacional de Colombia
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