1
by Brieskorn, Egbert, Purkert, Walter
Published 2024
Birkhäuser
Subjects: ...History...

2
by Brieskorn, Egbert, Purkert, Walter
Published 2021
Springer Berlin Heidelberg
Subjects: ...History...

3
by Purkert, Walter, Ilgauds, Hans J.
Published 1985
Birkhäuser
Subjects: ...History...