Umbrella program Irma - Sponge : background, scope and methodology / [ed.:] A. Hooijer, A.G. van OsSummary of NCR programme : version 2001-2002 / ed. by A.G. van OsTowards sustainable flood risk management in the Rhine and Meuse river basins : final report of the IRMA-SPONGE Umbrella Program, background, organisation and outputs / Aljosja Hooijer and Ad van OsNaar een duurzaam hoogwater risico beheer voor het Rijn en Maas stroomgebied : de belangrijkste conclusies van het Irma-Sponge onderzoeksprogramma / Aljosja Hooijer ... [et al.], red. ; met bijdragen van: Ad van Os ... [et al.]Vers une gestion durable des risques d'inondation dans les bassins versants du Rhin et de la Meuse : principaux messages du programme IRMA-SPONGE / Aljosja Hooijer ... [et al.] ed. ; contribution: Ad van Os ... [et al.]NCR-days 2001 : from sediment transport, morphology and ecology to river basin management / ed. by E. Stouthamer en A.G. van OsThe Netherlands Centre for River Studies : a co-operation of the major developers and users of expertise in the area of rivers / A. van Os, H. Middelkoop (eds.)NCR-days 2003 : dealing with floods within constraints, november 6-8 / N. Douben & A.G. van Os (eds.)Summary of NCR programme : version 2004-2005 / ed. by Ad van OsSummary of NCR programme : version 2006-2007 / ed. by A.G. van OsProceedings NCR-days 2006 : proceedings of the NCR-days held November 2-4, 2006 at the University of Twente, Enschede / D.C.M. Augustijn, A.G. van Os (eds.)NCR-days 2007 : a sustainable river system?! : November 15-16 / A.G. van Os (ed.)On the magnitude of interfacial shear of subcritical stratified flows in relation with interfacial stability / G. Abraham, M. Karelse, A. G. van OsMathematical modeling of flows and transport of conservative substances : requirements for predictive ability / G. Abraham, A.G. van Os and G.K. VerboomPredictive salinity modelling of the Oosterschelde with hydraulic and mathematical models / J. Dronkers, A.G. van Os and J.J. LeendertsePhysical modelling of the Rotterdamse Waterweg estuary / H.N.C. Breusers and A.G. van Os