Bremmer Jr, R. H.  (2007).  The Anglo-Saxon Continental Mission and the Transfer of Encyclopaedic Knowledge. In R. H.  Bremmer Jr & Dekker, K. (Red.), Foundations of Learning: The Transfer of Encyclopaedic Knowledge in the Early Middle Ages (Vol. 9, pp. 19-50). Leuven: Peeters.

McKitterick, R.  (2007).  The Migration of Ideas in the Early Middle Ages: Ways and Means. In R. H.  Bremmer Jr & Dekker, K. (Red.), Foundations of Learning: The Transfer of Encyclopaedic Knowledge in the Early Middle Ages (Vol. 9, pp. 1-18). Leuven: Peeters.

Dekker, K.  (2003).  Heerschappij en ontginning in Woudenberg in de middeleeuwen. Jaarboek Oud-Utrecht, Jaarboek 2003, 123-166.