1
by Schüle, W.
Published 1925
Springer Berlin Heidelberg

2
by Schüle, W.
Published 1922
Springer Berlin Heidelberg

3
by Schüle, W.
Published 1925
Springer Berlin Heidelberg

4
by Schüle, W.
Published 1920
Springer Berlin Heidelberg

5
by Schüle, W.
Published 1917
Springer Berlin Heidelberg

6
by Schüle, W.
Published 1930
Springer Berlin Heidelberg