POST-FRANCONIAN THEORY AND EARLY TRECENTO - MUSICAL INNOVATIONS OF CRUCE,PETRUS,DE AND THEIR SIGNIFICANCE FOR THE ITALIAN MENSURAL NOTATIONIN THE EARLY 14TH-CENTURY - GERMAN - RISTORY,H
M. Wittmann, POST-FRANCONIAN THEORY AND EARLY TRECENTO - MUSICAL INNOVATIONS OF CRUCE,PETRUS,DE AND THEIR SIGNIFICANCE FOR THE ITALIAN MENSURAL NOTATIONIN THE EARLY 14TH-CENTURY - GERMAN - RISTORY,H, Die Musikforschung, 49(1), 1996, pp. 85-86