Beatius se servans liberat / Cum humanum sit peccare

Bibliography

Zwick, Gabriel. 1948. Deux motets inédits de Philippe de Vitry et de Guillaume de Machaut. Revue de musicologie, 27: 27-57. pp. 40.

Schrade, Leo (ed.) 1956-. Polyphonic Music of the Fourteenth Century. 24 vols. Monaco. pp. (1), 106-109.

Caldwell, John. 1978. Medieval Music.  London. pp. no. 64.

Blachly, Alexander. 1971. The Motets of Philippe de Vitry. Master's thesis, Columbia University. pp. 120.

Zayaruznaya, Anna. 2015. Quotation, perfection, and the eloquence of form: introducing Beatius/Cum humanum. Plainsong & Medieval Music, xxiv: 129–66. pp. 157-165 (editon).