1. Huot (From Song to Book, p. 16) make this error
2. Gennrich (Rondeaux, Virelais und Balladen, vol. ii, p. 90)
3. Wolinski Mary on the manuscript (‘The Montpellier Codex: Its Compilation, Notation and Implications for the Chronology of the Thirteenth-Century Motet’ (Ph.D. diss., Brandeis University, 1988), p. 14 n. 1)