Krista De Jonge en Sanne Maekelberg, "Matters of Representation: On the Revival of the Early Mediaeval Keep in Brabant during the Early Modern Period", in: Romanesque Renaissance: Carolingian, Byzantine and Romanesque Buildings (800–1200) as a Source for New All’Antica Architecture in Early Modern Europe (1400–1700), ed. Adriaan Ottenheym, 2021, p. 211. Gearchiveerd op 14 augustus 2023.
Krista De Jonge en Sanne Maekelberg, "Matters of Representation: On the Revival of the Early Mediaeval Keep in Brabant during the Early Modern Period", in: Romanesque Renaissance: Carolingian, Byzantine and Romanesque Buildings (800–1200) as a Source for New All’Antica Architecture in Early Modern Europe (1400–1700), ed. Adriaan Ottenheym, 2021, p. 211. Gearchiveerd op 14 augustus 2023.