1
by Ruxin
Published 2004
2
by Samuels
Published 1996
3
by Ladimer
Published 1978
4
5
Published 1998
6
7
by Carey
Published 1989
8
by Sutton
Published 1993
9
Published 1985
10
by Hafmarin
Published 1989
11
by Yiannakis
Published 2001
12
by Hofman
Published 1989
13
by Downward
Published 2000