Bibliografie
. (2008).
The Rule of the Franciscan Third Order. In , A Companion to Medieval Rules and Customaries (Vol. 93, pp. 343-365). Leiden: Brill.
. (2020). The Rule of Saint Francis. In , A Companion to Medieval Rules and Customaries (Vol. 93, pp. 283-314). Leiden: Brill.
. (2020). The Rule of Saint Benedict. In , A Companion to Medieval Rules and Customaries (Vol. 93, pp. 37-76). Leden: Brill.
. (2020). The Rule of Saint Augustine. In , .A Companion to Medieval Rules and Customaries (Vol. 93, pp. 127-154). Leiden: Brill.
. (2020). Rudolf Th.M. van Dijk, Vrouwenbroeder en kenner van de Moderne Devotie. Enkele biografisch-bibliografische notities. In , Twaalf kapittels over ontstaan, bloei en doorwerking van de Moderne Devotie (Vol. 140, pp. 9-16). Hilversum: Verloren.
. (2012). A Rudder for The Ship of Fools?: Bosch’s Franciscans as Jongleurs of God. Speculum, 96(4), 1079-1138.
. (2021). Royal Burial Places in Western Europe. Creating Tradition, Succession and Memoria. In , Living Memoria. Studies in Medieval and Early Modern Memorial Culture in Honour of Truus van Bueren (Vol. 137, pp. 25-43). Hilversum: Verloren.
. (2011). Roving Nuns and Cistercian Realities: The Cloistering of Religious Women in the Thirteenth Century. Journal of Medieval and Early Modern Studies, 42(3), 597-614. doi:https://doi.org/10.1215/10829636-1720589
. (2012). Ronselen voor de kruistocht. De kruistochtcampagne van Olivier van Keulen. Spieghel Historiael, 32, 252-257.
. (1997). Rondom het sterfbed van Lubbert ten Busch. De Moderne Devoten en de pest te Deventer in 1398. In , De Pest in de Nederlanden. Medisch-historische beschouwingen 650 jaar na de Zwarte Dood. Vierde symposium geschiedenis der geneeskundige wetenschappen (Vol. 7, pp. 141-158). Brussel: Koninklijke Academie voor Geneeskunde van België .
. (1998). . (2007).
Rondom Egmond: Denen en West-Friezen in Kennemerland. In , Middeleeuwers in drievoud: hun woonplaats, verwantschap en voeding (Vol. 167, pp. 105-133). Hilversum: Verloren.
. (2017). . (2018).
Römische, fränkische und kirchenrechtliche Grundlagen und Regelungen der Vogtei. In , Kirchenvogtei und adlige Herrschaftsbildung im europäischen Mittelalter (Vol. 86, pp. 21-50). Ostfildern: Jan Thorbecke.
. (2019). Roman Liturgy and Frankish Creativity. The Early Medieval Manuscripts of the Ordines Romani . Cambridge Studies in Palaeography and Codicology. Cambridge: Cambridge University Press.
. (2024). . (2008).
The Role of the sponsa Christi, the “Bride of the highest King”, in the social and Sacral Hierarchy of Medieval Society: Assumptions, Potential and Reinterpretation. In , Virtuosos of Faith. Monks, Nuns, Canons, and Friars as Elites of Medieval Cultur (pp. 19-28). Münster: LIT Verlag.
. (2021). The role of the secular canons in the introduction of leaseholding in the thirteenth century. Case-study: the Liège-area. In , The development of leasehold in northwestern Europe, c. 1200 – 1600 (pp. 57-80). Turnhout: Brepols.
. (2008). The Role of Acoustics in the Performance of Renaissance Polyphony at the Collegiate Church of Saint Mary in Aachen. In Yearbook of the Alamire Foundation (Vol. 6, pp. 45-60). Peer: Alamire Foundation-Alamire Music Publishers.
. (2008). The Role of Abbots in the Coordination of Regional Benedictine Monasticism (c. 1130 – c. 1215). In , Abbots and Abbesses as a Human Resource in the Ninth- to Twelfth-Century West (Vol. 74, pp. 125-150). Zürich: LIT.
. (2018). Rogier Van der Weyden. 1400-1464. De Passie van de Meester (p. 576). Leuven-Zwolle: Davidsfonds-Waanders.
. (2009). . (2008).
Roermondse kartuizers of Keulse kruisheren. Kandidaten voor een kloosterstichting in de Meierij van ’s-Hertogenbosch. In , Rijksarchivaris in een land zonder grenzen. Liber amicorum mr. dr. Jacques van Rensch (Vol. 7, pp. 223-248). Maastricht: Regionaal Historisch Centrum Limburg.
. (2019). Roermond. Ruremund. In , Monasticon Cartusiense (Vol. 185/3, pp. 605-610, 693-695). Salzburg: Universität Salzburg. Institut für Anglistik und Amerikanistik.
. (2005).