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1BookPor Franky Calvo, Carlos Eduardo; Echeverri, Juan Alvaro; Vieco, Juan José; Pabón, Marta; Forero, Clemente; Fals Borda, Orlando; Domínguez, Camilo; Mahecha Rubio, Dany; Oliveira, João Pacheco dePublished in 2000Repositorio Universidad Nacional de Colombia
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2Article of journalPublished in 2011Repositorio Universidad Nacional de Colombia
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4Article of journalPublished in 2011Repositorio Universidad Nacional de Colombia
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