Vermeulen C.J.M. Flood early warning system : Paper presented at the conf.flood protection of Prague, Prague Sept.4-6, 1990 / C.J.M.Vermeulen, 1990. - 15 p. - Текст : непосредственный.
Vermeulen C.J.M. Operational management system for the drainage network Reiderzijlvest : Presented at the 16th European regional conf.,Budapest,June 21-27,1992 / C.J.M.Vermeulen,J.R.Moll, 1992. - 7 p. - Текст : непосредственный.
An information system for flood early warning : Presented at the 3rd Intern.conf.,Florece,24-26 Nov.1992 / J.G.Grijsen,X.C.Snoeker,C.J.M.Vermeulen и др., 1993. - 27 p. - Текст : непосредственный.