G. Jansen

Jansen, G., A.-O. Koloski-Ostrow and E. Moormann (2010). Roman Toilets. Their Archaeology and Cultural History. Leuven: Peeters.
De Haan, N. and G. Jansen (1996). Cura Aquarum in Campania. Proceedings of the Ninth International Congress on the History of Water Management and Hydraulic Engineering in the Mediterranean Region. Leuven: Peeters.