1
Published: Berlin : Staatsverl. d. DDR, 1967-
Serial
2
Published: Düsseldorf : Droste, 1968-
Leiden, anfangs
Leiden, anfangs
Serial
3
Published: Düsseldorf : Droste, 1970-1980
Serial
4
Published: Düsseldorf : Droste, 1970-
Serial
5
Published: München : Lohmüller, 1970-
Serial