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696821Article of journalPublished in 2001Repositorio Repositorio Institucional UPN
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696822Article of journalPublished in 2007Repositorio Repositorio Institucional UPN
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696823Article of journalPublished in 1991Repositorio Repositorio Institucional UPN
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696824Article of journalPublished in 1994Repositorio Repositorio Institucional UPN
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696825Article of journalPublished in 1995Repositorio Repositorio Institucional UPN
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696826Article of journalPublished in 2006Repositorio Repositorio Institucional UPN
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696827Article of journalPublished in 2011Repositorio Repositorio Institucional UPN
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696828Article of journalPublished in 2017Repositorio Repositorio Institucional UPN
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696829Article of journalPublished in 2015Repositorio Repositorio Institucional UPN
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696830Article of journalPublished in 2009Repositorio Repositorio Institucional UPN
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696831Article of journalPublished in 2017Repositorio Repositorio Institucional UPN
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696832Article of journalPublished in 2017Repositorio Repositorio Institucional UPN
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696833Article of journalPublished in 2015Repositorio Repositorio Institucional UPN
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696834Article of journalPublished in 2011Repositorio Repositorio Universidad Javeriana
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696835Article of journalPublished in 2012Repositorio Repositorio Universidad Javeriana
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696836
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696837
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696838
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696839
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696840