O quadrivium
La preistoria del quadrivium prima e dopo Platone
Les disciplines du quadrivium: l'astronomie
Quadrivium—System-2 MACI
Sammelhandschrift zu Quadrivium und Medizin
QUADRIVIUM. A TEXTBOOK FOR ALIENS
Towards the Quadrivium: the Role of the Timaeus in the Constitution of a Corpus of Mathematical Sciences