1
by Wolff, G.
Published 1977
Springer Berlin Heidelberg

2
by Wolff, G.
Published 1975
Springer Berlin Heidelberg

3
by Wolff, G.
Published 1975
Springer Berlin Heidelberg

4
by Wolff, G.
Published 1978
Springer Berlin Heidelberg

5
by Wolff, G.
Published 1983
Springer Berlin Heidelberg

6
by Gottschalk, W., Wolff, G.
Published 1983
Springer Berlin Heidelberg