Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
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: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Philosophy
Author of work: Aristoteles
Title: De generatione et corruptione
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Theology
Author of work: Aegidius Romanus
Title: Expositio secundi libri Sententiarum Petri Lombardi