1
Published 1998
2
Published 1998
3
Published 1998
4
by JENSEN
Published 1995
5
by BRINDLEY
Published 1993
6
by Hughes
Published 2012
7
by Kramer
Published 2012
8
by Samuel
Published 2006
9
by Garg
Published 2008
10
by Hughes
Published 2008
11
by BRINDLEY
Published 1989
12
Published 1997
13
by SCLATER
Published 1999
14
by Calter
Published 1984
15
Published 1988
16
Published 1996
17
by LALOND
Published 1994
18
Published 1998
19
Published 1998
20
by HERNITER
Published 2004