Delft hydraulics publications. N 406 : Water quality modelling of the southern North sea : A useful tool for research and managemant;Paper presented at the intern.conf.on environmental protection of the North sea, London, 24-27 Mar.1987 / J.A. van Pagee,P.C.G.Glas,C.F.Hopstaken,L.Postma, 1989. - 15 p. - Текст : непосредственный.