1
by Federhofer, Karl
Published 1950
Springer Berlin Heidelberg

2
by Federhofer, Karl
Published 1932
Springer Berlin Heidelberg

3
by Federhofer, Karl
Published 1950
Springer Vienna

4
by Federhofer, Karl
Published 1954
Springer Vienna

5
by Federhofer, Karl
Published 1951
Springer Vienna

6
by Federhofer, Karl
Published 1950
Springer Vienna