Morent, Stefan. 2009. „Theodor Dumitrescu: John Dygon’s ‚Proportiones Practicabiles Secundum Gaffurium‘ (Practical Proportions According to Gaffurius). New Critical Text, Translation, Annotations, and Indices“. Die Musikforschung 62 (2):171-72. https://doi.org/10.52412/mf.2009.H2.4354.