The dialogues of Gregory the Great in their late antique cultural background.

von Petersen, J.M
Pontifical Institute of Mediaeval Studies. Studies and texts 69
Toronto : 1984.
Umfang/Format: XXIV, 227 S., Abb.

The identification of the Titulus Fasciolae and its connection with pope Gregory the Great.

von Petersen, J.M
Veröffentlicht in Vigiliae Christianae, 30.1976
1976.
Umfang/Format: 151-158.

House churches in Rome.

von Petersen, J.M
Veröffentlicht in Vigiliae Christianae, 23.1969
1969.
Umfang/Format: 264-272.