@article{367794,
      author = {Hartmann, Wilfried, and Pennington, Kenneth.},
      url = {http://library.usi.edu/record/367794},
      title = {The history of medieval canon law in the classical period,  1140-1234 from Gratian to the decretals of Pope Gregory IX  / [electronic resource] :},
      publisher = {Catholic University of America Press,},
      recid = {367794},
      pages = {xiii, 442 p. ;},
      address = {Washington, D.C. :},
      year = {2008},
}