1
2
by Grimm, Hans-Jurgen
Published 1992
3
by Lanzer, Harriette
Published 1995
4
by Alexander, L. G.
Published 1990
5
by Hajny, Peter F.
Published 1983
6
by M?uller, Helmut
Published 1993
7
Published 1993
8
by Wendt, Heinz F., Dr.
Published 1975
9
by Singer, Helmut
Published 1995
10
Published 1987
11
by Eckstut, Samuela
Published 1993
12
Published 1976
13
14
by Hoerschelmann, Fred von
Published 1982
15
by Lohfert, Walter
Published 1993
16
17
by Baltzer, Ralf A.
Published 1991
18
by Baltzer, Ralf A.
Published 1991
19
by Baltzer, Ralf A.
Published 1991
20
by Fischer, Paul
Published 1988