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3141Article of journalPublished in 2006Repositorio Universidad Nacional de Colombia
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3142
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3143
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3144articlePublished in 2011Repositorio Repositorio Universidad Javerianaby Herrera Ospina, José de Jesús; Politécnico Colombiano Jaime Isaza Cadavid y Universidad de AntioquiaGet full text
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3145
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3146
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3147
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3148
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3149
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3150
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3151
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3152
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3153Article of journalPublished in 1992Repositorio Universidad Nacional de Colombia
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3154Article of journalPublished in 2001Repositorio Repositorio Institucional UPN
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3155Article of journalPublished in 2012Repositorio Repositorio Universidad Javeriana
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3156Article of journalPublished in 2007Repositorio Repositorio Universidad Javeriana
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3157
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3158
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3159
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3160