Christoffersen, Peter Woetmann (editor). 2018. Gregorius presul meritis. The anonymous three-part motet in the manuscript Florence, Biblioteca Riccardiana, Ms. 2794. An abandoned dedicatory song from the 1470s? http://www.sacred.pwch.dk/(Accessed: 26-05-2020).

Christoffersen, Peter Woetmann (editor). 2018. The anonymous Missa Sine nomine in MS Cappella Sistina 14.  http://sacred.pwch.dk/.

Christoffersen, Peter Woetmann. 2018. ‘An experiment in musical unity, or: The sheer joy of sound. The anonymous Sine nomine mass in MS Cappella Sistina 14’. Danish Yearbook of Musicology, 54-78.

Christoffersen, Peter Woetmann (editor). 2018. Guillaume Du Fay, Missa Se la face ay pale. http://www.sacred.pwch.dk/(Accessed: 26-5-2020).

Christoffersen, Peter Woetmann. 2016. Songs for funerals and intercession. A collection of polyphony for the confraternity of St Barbara at the Corbie Abbey, Amiens, Bibliothèque Centrale Louis Aragon, MS 162 D. 2 vols. http://amiens.pwch.dk/(Accessed: 9 Jun 3019).

Christoffersen, Peter Woetmann. 1994. French Music in the Early Sixteenth Century: Studies in the Music Collection of a Copyist of Lyons, the Manuscript Ny kgl. Samling 1848 2° in the Royal Library, Copenhagen. 3 vols. Museum Tusculanum Press; Københavns Universitet.

Christoffersen, Peter Woetmann. 1979. 'Or Sus Vous Dormez Trop': The Singing of the Lark in French Chansons of the Early Sixteenth Century. Festskrift Henrik Glahn,  Copenhagen.