1. Fearns, art. cit. (above note 7) 317–24.
2. Mansi, Sacrorum conciliorum XXI 712–13.
3. De Vic and Vaissette, Hist. gén. de Languedoc II 447; Guiraud, Hist. de l'Inquisition I 9.
4. Peter the Venerable, Letters (ed. Constable, II 285–88).
5. Kramp, art. cit. (above note 22) 73–76; Grundmann, art. cit. (above note 27) 369; Manselli, Studi 28–29. The dating of Peter the Venerable's Tractatus and Peter of Bruys' death put forth by Kramp and Manselli has also been accepted by Wakefield and Evans, Heresies of the High Middle Ages 118.