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3981Published in 2008Repositorio Universidad Nacional de Colombia
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3982
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3983
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3984
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3985
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3986
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3987
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3988Article of journalPublished in 2010Repositorio Universidad Nacional de Colombia
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3989
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3990Article of journalPor Villegas, HenryPublished in 2001Repositorio Universidad Nacional de Colombia
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3991Article of journalPublished in 2010Repositorio Universidad Nacional de Colombia
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3992Published in 2009Repositorio Universidad Nacional de Colombia
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3993Article of journalPublished in 2017Repositorio Universidad Nacional de Colombia
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3994Trabajo de grado de pregradoPublished in 2002Repositorio Universidad Nacional de Colombia
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3995
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3996
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3997Article of journalPublished in 2018Repositorio Universidad Nacional de Colombia
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3998
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3999
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4000