5
Published 1980
Book
6
Published 1986
Book
7
by Kunz, Frithjof, Thiel, Wera
Published 1983
Book
9
by Hantzsch, Heinz
Published 1958
Book
10
by Rüthers, Bernd, 1930-
Published 1972
Book
11
Published 1976
Book
14
by Schlegel, Roger
Published 1959
Book
19
Book