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2Work documentPublished in 2013Repositorio Universidad Nacional de Colombia
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3Work documentPublished in 1988Repositorio Universidad Nacional de Colombia
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4Work documentPor Palacino Rodríguez, Fredy; Bota Sierra, Cornelio Andrés; Amaya Perilla, Catalina; Contreras, NataliaPublished in 2020Repositorio Repositorio U. El Bosque