author = { Petrus de Cruce Ambianensi Harbinson, Denis },

title = { Tractatvs de tonis },

publisher = {American Inst. of Musicology},

keywords = { Quelle , Petrus , Musiktheorie , Geschichte 1200-1300 },

year = {1976},

booktitle = {Corpus scriptorum de musica ; 29},

address = { [Rome] },

url = { http://slubdd.de/katalog?TN_libero_mab2 }