Miscellaneous writings. Greek text and English translation,

von Nicholas I, patriarca di Costantinopoli, 852-925.
Corpus fontium historiae Byzantinae, 20
Dumbarton Oaks texts, 6
Washington, D.C., Dumbarton Oaks, 1981.
Umfang/Format: xxiv, 175 p. 24 cm.

Letters : Greek text and English translation

von Nicholas I, patriarca di Costantinopoli, 852-925.
Corpus fontium historiae Byzantinae, 6
Dumbarton Oaks texts, 2
Washington, D.C., Dumbarton Oaks, 1973.
Umfang/Format: xl, 631 p. 24 cm.