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101Article of journalPublished in 1984Repositorio Universidad Nacional de Colombia
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102Article of journalPublished in 1981Repositorio Universidad Nacional de Colombia
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103Article of journalPublished in 1980Repositorio Universidad Nacional de Colombia
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104Article of journalPublished in 1968Repositorio Universidad Nacional de Colombia
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105Article of journalPublished in 1991Repositorio Universidad Nacional de Colombia
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106Article of journalPublished in 1987Repositorio Universidad Nacional de Colombia
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107Article of journalPublished in 1988Repositorio Universidad Nacional de Colombia
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108Article of journalPublished in 1969Repositorio Universidad Nacional de Colombia
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109Article of journalPublished in 1975Repositorio Universidad Nacional de Colombia
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110Article of journalPublished in 1994Repositorio Universidad Nacional de Colombia
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111Article of journalPublished in 1983Repositorio Universidad Nacional de Colombia
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112Article of journalPublished in 1996Repositorio Universidad Nacional de Colombia
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113Article of journalPublished in 1983Repositorio Universidad Nacional de Colombia
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114Article of journalPublished in 1987Repositorio Universidad Nacional de Colombia
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115Article of journalPublished in 1968Repositorio Universidad Nacional de Colombia
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116Article of journalPublished in 1971Repositorio Universidad Nacional de Colombia
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