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1Article of journalPor Cellenieor, GuyPublished in 1997Repositorio Universidad Nacional de Colombia
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2Article of journalPublished in 1998Repositorio Universidad Nacional de Colombia
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3Article of journalPublished in 1997Repositorio Universidad Nacional de Colombia
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4Work documentPublished in 2016Repositorio Universidad Nacional de Colombia
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5Work documentPublished in 2018Repositorio Universidad Nacional de Colombia
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6Article of journalPublished in 1967Repositorio Universidad Nacional de Colombia
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7Work documentPublished in 2017Repositorio Universidad Nacional de Colombia
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8Article of journalPublished in 1979Repositorio Universidad Nacional de Colombia
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9Article of journalPublished in 1971Repositorio Universidad Nacional de Colombia
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10Article of journalPor Vasco, Carlos E.Published in 1978Repositorio Universidad Nacional de Colombia
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11Article of journalPublished in 1973Repositorio Universidad Nacional de Colombia
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12Article of journalPublished in 1963Repositorio Universidad Nacional de Colombia
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13Article of journalPublished in 1966Repositorio Universidad Nacional de Colombia
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14Article of journalPublished in 1964Repositorio Universidad Nacional de Colombia
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15InformePublished in 2020Repositorio Universidad Nacional de Colombia
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