2
by Allgöwer, Martin, Kinzl, L., Matter, P., Perren, S.N.
Published 1978
Springer Berlin Heidelberg

3
by Allgöwer, Martin, Matter, P., Perren, S.M., Rüedi, T.
Published 1973
Springer Berlin Heidelberg

5
Published 1976
Springer Berlin Heidelberg

7
Published 1973
Springer Berlin Heidelberg

8
Published 1982
Springer Berlin Heidelberg

11
by Müller, Maurice Edmond, Allgöwer, Martin, Willenegger, Hans
Published 1963
Springer Berlin Heidelberg

12
Published 1971
Springer Berlin Heidelberg