1
by Gröbner, Wolfgang, Hofreiter, Nikolaus
Published 1961
Springer Berlin Heidelberg

2
by Gröbner, Wolfgang, Hofreiter, Nikolaus
Published 1965
Springer Berlin Heidelberg

3
by Gröbner, Wolfgang, Hofreiter, Nikolaus
Published 1958
Springer Berlin Heidelberg

4
by Gröbner, Wolfgang, Hofreiter, Nikolaus
Published 1961
Springer Berlin Heidelberg