Tierney, Brian.
Foundations of the conciliar theory: the contribution of the medieval canonists from Gratian to the great schism /
Brian Tierney 
. - Cambridge : At the University Press,  1968 
. - x, 280 p.  22 cm. 
 - (Cambridge University Press Library Edition )
<br/>К.: Бібліогр. : c.  264-274, Index