Subject: Canon Law
Author of work: Reymundus de Peniaforti
Title: Summa cum comment.
Subject: Theology
Author of work: Gregorius I
Title: Dialogi
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Civil Law
Title: Digestum infortiatum
Subject: Philosophy
Author of work: Aristoteles
Title: Meteora