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: Theology
Title: Commentary on the Setences
Subject: Philosophy
Author of work: Aristoteles
Title: De caelo et mundo
Subject: Theology
Title: Comment. on Sentences of Peter Lombard
Subject: Theology
Author of work: Petrus Lombardus
Title: Sententiae
Subject: Theology
Author of work: Petrus Lombardus
Title: In Psalmos
Subject: Canon Law
Author of work: Innocentius IV
Title: In Decretales
Subject: Philosophy
Author of work: Aristoteles
Title: De caelo et mundo