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

[untexted work: NL-Lu 2720 n12]

anonymous

Leiden: Universiteitsbibliotheek B.P.L. 2720, fol. 6v (1/0) (illegible).

FISCHER, Kurt von. 'Neue Quellen zur Musik des 13., 14. und 15. Jahrhunderts', Acta Musicologica, XXXVI (1964), p. 84.