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1Article of journalPublished in 1955Repositorio Universidad Nacional de Colombia
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2Article of journalPublished in 1943Repositorio Universidad Nacional de Colombia
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3Article of journalPublished in 1949Repositorio Universidad Nacional de Colombia
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4Article of journalPublished in 1994Repositorio Universidad Nacional de Colombia
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5Article of journalPublished in 1958Repositorio Universidad Nacional de Colombia
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6Article of journalPublished in 2011Repositorio Universidad Nacional de Colombia
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7Article of journalPublished in 1945Repositorio Universidad Nacional de Colombia
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8Article of journalPublished in 1943Repositorio Universidad Nacional de Colombia
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9Article of journalPublished in 1936Repositorio Universidad Nacional de Colombia
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10Article of journalPublished in 1993Repositorio Universidad Nacional de Colombia
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11Article of journalPublished in 1994Repositorio Universidad Nacional de Colombia
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12Article of journalPublished in 1941Repositorio Universidad Nacional de Colombia
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13Article of journalPublished in 1944Repositorio Universidad Nacional de Colombia
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14Article of journalPublished in 1957Repositorio Universidad Nacional de Colombia
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15Article of journalPublished in 1946Repositorio Universidad Nacional de Colombia
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16Article of journalPublished in 1942Repositorio Universidad Nacional de Colombia
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17Article of journalPublished in 1943Repositorio Universidad Nacional de Colombia
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18Article of journalPublished in 1998Repositorio Universidad Nacional de Colombia
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19Article of journalPublished in 1939Repositorio Universidad Nacional de Colombia
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20Article of journalPublished in 1946Repositorio Universidad Nacional de Colombia
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