de Canonicis Qui Seculares Dicuntur: Treize Siecles de Chapitres Seculiers Dans Les Anciens Pays-Bas. Thirteen Centuries of Chapters of Secular Canons (Paperback)
Ecclesia in Medio Nationis: Reflections on the Study of Monasticism in the Central Middle Ages (Paperback) - Reflections on the Study of Monasticism in the Central Middle Ages
