1
Book
2
3
4
5
Book
6
7
8
Published: Königstein/Ts. : Verlagsgruppe Athenäum, Hain, Scriptor, Hanstein, 1979
Book
9
10
11
12
13
14
Book
15
Book
16
17
Book
18
19
Published: Clausthal-Zellerfeld, 1985
Book
20
Book