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1Article of journalPublished in 2010Repositorio Universidad Nacional de Colombia
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2Article of journalPublished in 2007Repositorio Universidad Nacional de Colombia
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3Article of journalPublished in 2009Repositorio Universidad Nacional de Colombia
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4Article of journalPor Vargas, Diana; Chaves Sanchez, Deisy; Trujillo Uribe, Maria Patricia; Piñeres Mendoza, Jorge Luis; Barraza Burgos, Juan ManuelPublished in 2013Repositorio Universidad Nacional de Colombia
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5Article of journalPublished in 2010Repositorio Universidad Nacional de Colombia
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6Investigation reportPublished in 2011Repositorio Repositorio Minciencias
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7Investigation reportPublished in 2011Repositorio Repositorio Minciencias
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8Article of journalPublished in 2007Repositorio RED: Repositorio Educativo Digital UAO
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