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Published 1971
2
by Bell, F. G.
Published 1983
3
by Jaeger, J. C.
Published 1971
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5
by Wahlstrom
Published 1973
6
by Amir, Joram M.
Published 1986
7
by Clutterbuck, P. J.
Published 1982
8
by Jaeger
Published 1969
9
10
by Dreyer, W. 1920-
Published 1972
11
Published 1978
12
Published 2010
13
14
by Feng, Xia-Ting
Published 2011
15
16
by Pariseau, William G.
Published 2007
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17
Published 2002
18
19
by Harwant Singh
Published 2003
20
by Pariseau, W. G.
Published 2012