کتاب های Wilfried Hartmann
The History of Byzantine and Eastern Canon Law to 1500
Wilfried Hartmann, Kenneth Pennington, 2012
The History of Medieval Canon Law in the Classical Period, 1140-1234: From Gratian to the Decretals of Pope Gregory IX
Wilfried Hartmann, Kenneth Pennington, 2008
The History of Courts and Procedure in Medieval Canon Law
Wilfried Hartmann and Kenneth Pennington, 2016
