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  1. 48861
  2. 48862
  3. 48863
  4. 48864
  5. 48865
  6. 48866
  7. 48867
  8. 48868
  9. 48869
  10. 48870
  11. 48871
    Article of journal
    Published in 1991
    Repositorio Universidad Nacional de Colombia

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  12. 48872
  13. 48873
  14. 48874
  15. 48875
  16. 48876
  17. 48877
  18. 48878
    Article of journal
    Published in 2001
    Repositorio Universidad Nacional de Colombia

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  19. 48879
  20. 48880
    Article of journal
    Published in 1985
    Repositorio Universidad Nacional de Colombia

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