1
by Beckmann, M.J., Künzi, H.P.
Published 1969
Springer Berlin Heidelberg

2
by Beckmann, M. J., Künzi, H. P.
Published 1984
Springer Berlin Heidelberg

3
by Beckmann, M.J., Künzi, H.P.
Published 1973
Springer Berlin Heidelberg

5
Published 1983
Springer Berlin Heidelberg
Other Authors: ...Beckmann, M.J....