1
by Graf, Otto, Albrecht, Walter, Schäffler, Hermann
Published 1960
Springer Berlin Heidelberg

3
by Graf, Otto
Published 1950
Springer Berlin Heidelberg

4
by Graf, Otto
Published 1941
Springer Berlin Heidelberg

5
by Graf, Otto
Published 1942
Springer Vienna

8
by Graf, Otto
Published 1938
Springer Vienna

9
by Graf, Otto
Published 1940
Springer Vienna

10
by Graf, Otto
Published 1951
Springer Berlin Heidelberg