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89341
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89342Article of journalPublished in 2008Repositorio Universidad Nacional de Colombia
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89343Article of journalPor Martínez Lage, Isabel; Vázquez Herrero, Cristina; González Fonteboa, Belén; Martínez Abella, FernandoPublished in 2010Repositorio Universidad Nacional de Colombia
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89344
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89345Published in 2014Repositorio Universidad Nacional de Colombia
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89346
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89347Article of journalPublished in 1991Repositorio Universidad Nacional de Colombia
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89348Article of journalPor Castañeda Sánchez, Darío Antonio; Montoya Gutiérrez, Ruth Yesenia; Escobar Chalarca, Carlos AlbertoPublished in 2006Repositorio Universidad Nacional de Colombia
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89349Article of journalPublished in 2002Repositorio Universidad Nacional de Colombia
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89350Article of journalPublished in 1999Repositorio Universidad Nacional de Colombia
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89351
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89352
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89353
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89354Article of journalPublished in 2009Repositorio Universidad Nacional de Colombia
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89355
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89356Article of journalPublished in 1976Repositorio Universidad Nacional de Colombia
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89357Article of journalPor Zongyong, Wang; Xin, Han; Guxian, LV; Xunyu, Zhang; Yingchun, Zhang; Xiao, Fan; Qinglong, Huo; Yaqing, XuPublished in 2016Repositorio Universidad Nacional de Colombia
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89358
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89359
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89360