1
Published 2000
Book
2
Published 2005
Electronic
3
Published 2006
Electronic
4
Published 2008
Electronic
5
Published 2012
Electronic
6
Published 2010
Electronic
7
Published 2009
Electronic
8
Published 2011
Electronic
9
Published 2000
Book
10
Published 2000
Book
11
Published 2000
Book
12
Published 2001
Book
13
Published 2001
Book
14
Published 2002
Book
15
Published 2006
Book
16
Published 2003
Book
17
Published 2007
Book
19
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Journal
20
Published 1994
Book