1
by Lethbridge
Published 2005
2
by Sommerville
Published 2011
3
by BEHFOROOZ
Published 1996
4
by Sommerville
Published 2000
5
by Pfleeger
Published 2001
6
by BRUEGGE
Published 2000
7
by Vliet
Published 2000
8
by Bell
Published 2000
9
by Pfleeger
Published 2010
10
by Pressman
Published 2015
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11
by Vliet
Published 2008
12
by Pressman
Published 2010
13
by SCHACH
Published 1999
14
by SCHACH
Published 1997
15
by SCHACH
Published 1996
16
by Vliet
Published 1993
17
by Sommerville
Published 2004
18
by Pressman
Published 2009
19
by COOLING
Published 2002
20
by PETERS
Published 2000