Sancti Romani melodi cantica Cantica dubia

Romanus Melodus, Saint 6th cent.. Sancti Romani melodi cantica: Cantica dubia / edited by Paul Maas and C.A. Trypanis . - Berlin : Walter de Gruyter and Co., 1970 . - xx, 222 p. 22 cm.
К.: Бібліогр. : c. xvii-xviii