Brüssel-Hauptstadt
- Comparaison financière des divers types de galeries techniques exécutées par la Direction des routes de Bruxelles-Capitale. Cost comparison concerning the various types of technical galleries carried out by the Brussels-Capital Road department. Vorgetragen bei: AFTES - Journées d'études, Nice, 1981, S. 94-100. (1981):
- The Protection of the Public Swimming Pools in Brussels-Capital Region. Vorgetragen bei: Third International Congress on Construction History, Brandenburg University of Technology Cottbus, Germany , 20th-24th May 2009. (2009):