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1Work documentPublished in 2009Repositorio Universidad Nacional de Colombia
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2Article of journalPublished in 2014Repositorio Universidad Nacional de Colombia
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3Article of journalPublished in 2011Repositorio Universidad Nacional de Colombia
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4Article of journalPor López, Juan Manuel; Castaño zapata, Jairo; Marulanda Angel, Marta Leonor; López Gutierrez, Ana MaríaPublished in 2013Repositorio Universidad Nacional de Colombia
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5http://purl.org/coar/resource_type/c_c94fPublished in 2000Repositorio Universidad Nacional de Colombia
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6Work documentPublished in 2013Repositorio Universidad Nacional de Colombia
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7http://purl.org/coar/resource_type/c_c94fPublished in 2016Repositorio Universidad Nacional de Colombia
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9Work documentPublished in 2016Repositorio Universidad Nacional de Colombia
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