Gerken, Robert E (editor). 1982. Three Mass Proper Cycles from Jena 35. Recent Researches in the Music of the Middle Ages and Early Renaissance.  Madison.

Gerken, Robert E. 1969. The Polyphonic Cycles of the Proper of the Mass in the Trent Codex 88 and Jena Choirbooks 30 and 35. Indiana University, Unpublished Ph.D. dissertation.