THE OLDEST EXTANT PART MUSIC AND THE ORIG IN OF WESTERN POLYPHONY, VOL 1, OBSERVATIONS, CONCLUSIONS AND HYPOTHESES, VOL 2, THE TRANSCRIPTIONS - VANDERWERF,H
A. Haug, THE OLDEST EXTANT PART MUSIC AND THE ORIG IN OF WESTERN POLYPHONY, VOL 1, OBSERVATIONS, CONCLUSIONS AND HYPOTHESES, VOL 2, THE TRANSCRIPTIONS - VANDERWERF,H, Die Musikforschung, 49(3), 1996, pp. 316-317