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

Gloria

anonymous

Poznan: Biblioteka Zakladu Muzykologii Uniwersytetu Poznanskiego, MS without shelfmark, number 1 (2/1) (recto).

LEFFERTS, Peter M. The Motet in England in the Fourteenth Century, Ann Arbor: UMI Research Press, 1986, pp. 86, 331/n89.