Subject: Canon Law
Author of work: Bernardus de Botone Parmensis
Title: Casus longi super Decretales
Subject: Civil Law
Author of work: Justinianus
Title: Digestum vetus
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Civil Law
Author of work: Justinianus
Title: Digestum vetus
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Theology
Author of work: Hugo de Folieto
Title: De claustro animae
Subject: Natural History
Title: Meteorology
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Logic
Title: Vetus logica (Boethius, De differentiis topicis)
Subject: Logic
Title: Vetus logica (Porphyrius)