Meijns, B. L. I.  (2017).  Between the Empire and the Reform Papacy: The Abbey of St Hubert and the Impact of its Papal Bull (1074) on Ecclesiastical Tradition and Monastic Identity in the Diocese of Liège. In S.  Vanderputten, Snijders, T., & Diehl, J. (Red.), Medieval Liège at the Crossroads of Europe. Monastic Society and Culture, 1000-1300  (Vol. 37, pp. 219-250). Turnhout: Brepols.