Subject: Canon Law
Author of work: Gratianus
Title: Decretum Gratiani
Subject: Canon Law
Title: Distinctiones in canon law
Subject: Canon Law
Title: Text of canon law
Subject: Civil Law
Author of work: Justinianus
Title: Digestum vetus
Subject: Civil Law
Author of work: Justinianus
Title: Digestum novum
Subject: Medicine
Author of work: Avicenna
Title: Canon medicinae
Subject: Theology
Author of work: Gregorius I
Title: Homiliae in Evangelia
Subject: Civil Law
Title: Comment. on the excerpts of Vacarius from Digestum and Codex
Subject: Civil Law
Title: Comment. on Codex Justiniani
Subject: Canon Law
Title: Treatise on canon law