1
Published: 1994
2
Published: 1951-2018;, 1951-1955;, 1956-1960;, 1961-1972
3
Published: 2022
4
Published: 1996
Superior document: Duisburger Forschungen 42
Links: Inhaltsverzeichnis
5
Published: 1987
Links: Inhaltsverzeichnis