Contents of volume 90, No. 1 (August 2011)
Editorial
Wim Hoek

Dutch natural gas strategy: historic perspective and challenges ahead
R. Weijermars & S.M. Luthi


New Nothosaurus skulls from the Lower Muschelkalk of the western Lower Saxony Basin (Winterswijk, the Netherlands) shed new light on the status of Nothosaurus winterswijkensis
P.C.H. Albers


OSL dating of an inland dune along the lower River Scheldt near Aard (East Flanders, Belgium)
F. Bogemans & D. Vandenberghe


Fluvial architecture of Belgian river systems in contrasting environments: implications for reconstructing the sedimentation history
B. Notebaert, G. Houbrechts, G. Verstraeten, N. Broothaerts, J. Haeckx, M. Reynders, G. Govers, F. Petit & J. Poesen


Comment on: Mid-Holocene water-level changes in the lower Rhine-Meuse delta (western Netherlands): implications for the reconstruction of relative mean sea-level rise, palaeoriver-gradients and coastal evolution by Van de Plassche et al. (2010)
M.P. Hijma & K.M. Cohen


Reply to the comment by M.P. Hijma & K.M. Cohen on the paper by Van de Plassche et al. (2010)
B. Makaske & W.Z. Hoek