Dualism in the ancient Middle East : 4

1989.
Umfang/Format: XIV, 333 S. : Abb.

Dualism in the Hellenistic world : 6

1991.
Umfang/Format: XLI, 287 S.

Dualism in the Palestinian-Syrian region during the first century A.D. until CA. 140 : 7

1992.
Umfang/Format: XXXII, 310 S.

Gnostic dualism in Asia Minor during the first centuries A.D. : 8

1993.
Umfang/Format: XLV, 339 S.

Gnostic dualism in Asia Minor during the first centuries A.D. ; 2 : 9

1994.
Umfang/Format: XLIX, 305 S.