Codex St. Emmeram, BSB Clm 14274
Very important source for Works of Dufay.
http://daten.digitale-sammlungen.de/~db/0000/bsb00001643/images/
Very important source for Works of Dufay.
http://daten.digitale-sammlungen.de/~db/0000/bsb00001643/images/