1
2
by Honecker, Erich, Hermann, Joachim
published 1985
Book
3
published 1985
Book
6
by Verner, Paul
published 1982
Conference Proceedings Book
8
by Honecker, Erich
published 1981
Conference Proceedings Book
9
published 1980
Book
10
Book
11
12
by Herrmann, Joachim, Honecker, Erich
published 1978
Book
13
by Honecker, Erich
published 1978
Book
14
published 1977
Book
15
18
published 1975
Book
19
20