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54001Article of journalPublished in 2000Repositorio Universidad Nacional de ColombiaGet full text
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54002
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54003
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54004
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54005
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54006
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54007Article of journalPublished in 2013Repositorio Universidad Nacional de ColombiaGet full text
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54008Article of journalPublished in 1957Repositorio Universidad Nacional de ColombiaGet full text
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54009Article of journalPublished in 2011Repositorio Universidad Nacional de ColombiaGet full text
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54010Article of journalPublished in 1947Repositorio Universidad Nacional de ColombiaGet full text
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54011Article of journalPublished in 1949Repositorio Universidad Nacional de ColombiaGet full text
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54012Article of journalPublished in 2006Repositorio Universidad Nacional de ColombiaGet full text
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54013Article of journalPublished in 2013Repositorio Universidad Nacional de ColombiaGet full text
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54014
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54015Article of journalPublished in 2012Repositorio Universidad Nacional de ColombiaGet full text
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54016Article of journalPublished in 2000Repositorio Universidad Nacional de ColombiaGet full text
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54017Article of journalPor Lléras, LuisPublished in 2010Repositorio Universidad Nacional de ColombiaGet full text
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54018
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54019Article of journalPublished in 2007Repositorio Universidad Nacional de ColombiaGet full text
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54020Article of journalPublished in 2008Repositorio Universidad Nacional de ColombiaGet full text
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