1
2
3
4
5
6
7
8
9
by Smith, Roland
Published 1994
10
11
12
by Gustafson, R. David
Published 1999
13
14
15
16
by Malone, Leo. J.
Published 2001
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18
by Greenberg, Michael D.
Published 1998
19
Published 2001
20
by Campbell, Neil A.
Published 2005