1
Published 2005
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3
Published 2012
4
Published 2012
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Published 2016
6
Published 2008
7
Published 2008
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Published 2002
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by Thornton, Verden J
Published 2001
10
Published 2000
11
Published 2002
12
Published 2002
13
Published 2008
14
Published 1993
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Published 1998
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Published 2001
17
Published 2017
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19
Published 2020
20
Published 1991