1
2
Published 1977
3
4
Published 2008
5
Published 1979
6
Published 1984
7
8
Published 1982
9
Published 1995
10
Published 2005
11
Published 2007
12
Published 1984
13
Published 1975
14
Published 1994
15
Published 2004
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16
Published 2007
17
Published 1985
18
Published 2011
19
Published 1985
20
Published 2008