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  1. 52561
  2. 52562
  3. 52563
  4. 52564
  5. 52565
    Article of journal
    Published in 2001
    Repositorio Universidad Nacional de Colombia

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  6. 52566
  7. 52567
  8. 52568
    Article of journal
    Repositorio Universidad Nacional de Colombia

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  9. 52569
  10. 52570
  11. 52571
  12. 52572
  13. 52573
  14. 52574
  15. 52575
  16. 52576
  17. 52577
  18. 52578
  19. 52579
    Article of journal
    Published in 1998
    Repositorio Universidad Nacional de Colombia

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  20. 52580