1
Published: Göttingen : Lamuv Verl, 1978
Book
2
Book
3
4
5
Book
6
Book
7
Book
8
Book
9
Published: Mainz : PDS Rheinland-Pfalz, Linke Liste, 1992.
Book
10
Book
11
12
13
Published: Sankt Augustin : COMDOK, Verl.-Abt, 1993.
Book
14
15