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    Published 2013
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    Published 1952
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    Published 1991
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    Published 1994
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  11. 11
    Published 1946
    Journal
  12. 12
    Published 1997
    Journal
  13. 13
    Published 1997
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    Published 1999
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    Published 1999
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    Published 1997
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  19. 19
    Published 2001
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