Gerda WolframBooksDie Eratopokriseis Des Pseudo-Johannes Damaskenos Zum Kirchengesang (Monumenta Musicae Byzantinae)Palaeobyzantine Notations IIIPalaeobyzantine notations IIPalaeobyzantine notationsTradition and innovation in late- and postbyzantine liturgical chantPalaeobyzantine notations IIIAuthor data: Open Library