1
2
3
4
Article
5
Published: Weinheim : Beltz, 1978
Serial
6
7
Article
8
Published: Neuendettelsau : Freimund Verlag, 1981
Serial
9
Published: Weinheim : Beltz, 1980
Serial
10
Published: Weinheim : Beltz, 1980
Serial
11
Article
12
Published: Essen : Sutter, 1981
Serial
13
14
Article
15
Article
16
Book
17
Published: Berlin [u.a.] : Argument-Verl, 1998
Book
18
Book
19
Book
20
Published: Köln : Bund-Verl, 1984
Book