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8361Article of journalPublished in 1989Repositorio Universidad Nacional de Colombia
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8362Article of journalPublished in 2012Repositorio Universidad Nacional de Colombia
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8363
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8364Article of journalPublished in 2014Repositorio Universidad Nacional de Colombia
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8365Article of journalPublished in 2010Repositorio Universidad Nacional de Colombia
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8366Article of journalPor Liu, Xianping; Ju, Xiaodong; Qiao, Wenxiao; Lu, Junqiang; Men, Baiyong; Zhang, Kai; Yao, YongchaoPublished in 2016Repositorio Universidad Nacional de Colombia
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8367
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8368Article of journalPublished in 2012Repositorio Universidad Nacional de Colombia
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8369Article of journalPublished in 1988Repositorio Universidad Nacional de Colombia
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8370
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8371Article of journalPublished in 1997Repositorio Universidad Nacional de Colombia
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8372Work documentPublished in 2015Repositorio Universidad Nacional de Colombia
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8373
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8374Trabajo de grado de pregradoPublished in 2011Repositorio Universidad Nacional de Colombia
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8375
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8376
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8377
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8378
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8379
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8380