1
by Höpker, W.-W.
Published 1984
Springer Berlin Heidelberg

2
by Doerr, W., Höpker, W.-W., Roßner, J. A.
Published 1974
Springer Berlin Heidelberg

3
by Doerr, Wilhelm, Höpker, W.-W., Hofmann, W., Kayser, K.
Published 1980
Springer Berlin Heidelberg