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821Published in 1991Repositorio Repositorio CESA
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822
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823
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824
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825Article of journalPublished in 2000Repositorio Universidad Nacional de Colombia
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826Article of journalPublished in 1998Repositorio Universidad Nacional de Colombia
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827http://purl.org/coar/resource_type/c_c94fPublished in 2002Repositorio Universidad Nacional de Colombia
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828Article of journalPublished in 1999Repositorio Universidad Nacional de Colombia
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829http://purl.org/coar/resource_type/c_c94fPublished in 2002Repositorio Universidad Nacional de Colombia
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830Article of journalPublished in 2011Repositorio Universidad Nacional de Colombia
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831http://purl.org/coar/resource_type/c_c94fPublished in 2002Repositorio Universidad Nacional de Colombia
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832
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833
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834Investigation reportPublished in 2000Repositorio Repositorio Minciencias
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835
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836
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837Trabajo de grado de pregradoPublished in 2020Repositorio Repositorio Institucional UPN
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838
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839
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840