La Trobe University - Library: Medieval Music Database - Annual cycle of feasts of liturgical chant, liturgical polyphony and secular music of the late middle ages.

Ave virgo singularis... Amen

monophonic anonymous sequence

Paris: Bibliothèque Nationale, fonds latin 5247, fol. 146v-147v (1/1) (Amen 2/2).

ZIINO, Agostino. 'Testi religiosi medioevali in notazione mensurale', L'Ars nova italiana del Trecento IV: Certaldo 1975, 1978, p. 468.