@inbook{Piron_2006,
title={Franciscan Quodlibeta in Southern Studia and at Paris,
1280–1300},
ISBN={9789004123335},
url={http://dx.doi.org/10.1163/9789047404149_011},
DOI={10.1163/9789047404149_011},
booktitle={Theological Quodlibeta in the Middle Ages: The Thirteenth Century},
publisher={BRILL},
author={Piron,
Sylvain},
year={2006},
month=jan,
pages={403–438} }