2012, Part of book or chapter of book (Klueting, E.; Panzer, S.; Scholten, A. (ed.), Monasticon Carmelitanum. Die Klöster des Karmelitenordens (O.Carm.) in Deutschland von den Anfängen bis zur Gegenwart, pp. 945-949)
2011, Article / Letter to editor (Publications de la Société Historique et Archéologique dans le Limbourg, à Maestricht, vol. 147, (2011), pp. 157-190)
2010, Part of book or chapter of book (Boer, W.A. den; Booma, J.G.J. van; Jacobs, A.P.J. (ed.), Onder 't kruys. Kerkelijk en religieus leven in het gebied van Maas en Nederrijn, pp. 209-236)
2010, Part of book or chapter of book (Caspers, Charles; Cortjaens, Wolfgang; Jacobs, A.P.J. (ed.), De basiliek van Onze Lieve Vrouw van het Heilig Hart te Sittard. Architectuur, devotie, iconografie, pp. 11-35)
2009, Article / Letter to editor (Publications de la Société Historique et Archéologique dans le Limbourg, à Maestricht, vol. 145, (2009), pp. 205-255)
2008, Part of book or chapter of book (Cortjaens, Wolfgang; Maeyer, Jan De; Verschaffel, Tom (ed.), Historism and Cultural Indentity in the Rhine-Meuse Region. Tensions between Nationalism and Regionalism in the Ninetheenth Century, pp. 333-355)
2008, Part of book or chapter of book (Cortjaens, Wolfgang; Maeyer, Jan De; Verschaffel, Tom (ed.), Historism and Cultural Indentity in the Rhine-Meuse Region. Tensions between Nationalism and Regionalism in the Ninetheenth Century, pp. 217-235)
2008, Part of book or chapter of book (Cortjaens, Wolfgang; Maeyer, Jan De; Verschaffel, Tom (ed.), Historism and Cultural Indentity in the Rhine-Meuse Region. Tensions between Nationalism and Regionalism in the Ninetheenth Century, pp. 113-135)
2004, Article in monograph or in proceedings (Geuenich, D. (ed.), Heiligenverehrung und Wallfahrten am Niederrhein. Schriftenreihe der Niederrheinakademie, 6, pp. 32-49)