En gratulemur hodie / Francisci patris emulus

Bibliography

Sparks, Edgar H. 1963. Cantus Firmus in Mass and Motet, 1420-1520.  Berkeley and Los Angeles. pp. p. 45 (partial transcription).

Ward, Tom Robert. 1969. The Polyphonic Office Hymn from the Late Fourteenth Century Until the Early Sixteenth Century. Unpublished Ph.D. dissertation, University of Pittsburgh. pp. App. II, no. 16.