Bibliografie
. Bishops, Authority and Community in Northwestern Europe, c.1050–1150. Cambridge: Cambridge University Press; 2015. p. 392.
. 'Both Mary and Martha': Bishop Lietbert of Cambrai and the Construction of Episcopal Sanctity in a Border Diocese around 1100. In: . The Bishop Reformed. Studies of Episcopal Power and Culture in the Central Middle Ages. Routledge: Aldershot; 2007. pp. 137-160.
. Bishop Gerard I of Cambrai-Arras, the Three Orders, and the Problem of Human Weakness. In: . The Bishop Reformed. Studies of Episcopal Power and Culture in the Central Middle Ages. Aldershot: Routledge; 2007.
. 'Both Mary and Martha': Bishop Lietbert of Cambrai and the Construction of Episcopal Sanctity in a Border Diocese around 1100. In: . The Bishop Reformed. Studies of Episcopal Power and Culture in the Central Middle Ages. Routledge: Aldershot; 2007. pp. 137-160.