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  1. 69201
  2. 69202
  3. 69203
  4. 69204
  5. 69205
    Article of journal
    Published in 1998
    Repositorio Universidad Nacional de Colombia

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  6. 69206
  7. 69207
  8. 69208
  9. 69209
  10. 69210
    Trabajo de grado de pregrado
    Published in 2008
    Repositorio Universidad Nacional de Colombia

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  11. 69211
  12. 69212
    Article of journal
    Published in 2005
    Repositorio Universidad Nacional de Colombia

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  13. 69213
  14. 69214
  15. 69215
    Article of journal
    Published in 2013
    Repositorio Universidad Nacional de Colombia

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  16. 69216
  17. 69217
    Article of journal
    Published in 1977
    Repositorio Universidad Nacional de Colombia

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  18. 69218
  19. 69219
  20. 69220