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  1. 1
    Published 1959
    Journal
  2. 2
    Journal
  3. 3
    Published 1959
    Journal
  4. 4
    Published 1973
    Journal
  5. 5
    Published 1979
    Journal
  6. 6
    Published 1938
    Journal
  7. 7
    Published 1967
    Journal
  8. 8
    Published 1969
    Journal
  9. 9
  10. 10
  11. 11
    Published 2000
    Journal
  12. 12
    Published 1991
    Journal
  13. 13
    Published 1995
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    Journal
  14. 14
    Published 2000
    Journal
  15. 15
    Published 1991
    Journal
  16. 16
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  18. 18
    Published 1988
    Journal
  19. 19
    Published 1999
    Journal
  20. 20
    Published 1987
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