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81421Article of journalPublished in 1992Repositorio Universidad Nacional de ColombiaGet full text
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81422
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81423Article of journalPublished in 2012Repositorio Universidad Nacional de ColombiaGet full text
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81424
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81425Article of journalPublished in 2016Repositorio Universidad Nacional de ColombiaGet full text
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81426Article of journalPublished in 2008Repositorio Universidad Nacional de ColombiaGet full text
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81427
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81428http://purl.org/coar/resource_type/c_18ccPublished in 2005Repositorio Universidad Nacional de ColombiaGet full text
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81429Work documentPublished in 2014Repositorio Universidad Nacional de ColombiaGet full text
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81430
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81431Article of journalPublished in 1991Repositorio Universidad Nacional de ColombiaGet full text
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81432
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81433Article of journalPublished in 1951Repositorio Universidad Nacional de ColombiaGet full text
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81434Article of journalPublished in 2016Repositorio Universidad Nacional de ColombiaGet full text
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81435
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81436
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81437
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81438Article of journalPublished in 2017Repositorio Universidad Nacional de ColombiaGet full text
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81439Article of journalPor Artamonov, D. V.Published in 2016Repositorio Universidad Nacional de ColombiaGet full text
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81440Article of journalPublished in 2012Repositorio Universidad Nacional de ColombiaGet full text
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