2
by Abelsdorff, G., Elschnig, A., Ginsberg, S., Greeff, R.
Published 1931
Springer Berlin Heidelberg

3
by Abelsdorff, G., Elschnig, A., Ginsberg, S., Greeff, R.
Published 1937
Springer Berlin Heidelberg

4
by Abelsdorff, G., Elschnig, A., Ginsberg, S., Greeff, R.
Published 1928
Springer Berlin Heidelberg