Baarse G. Water quality problems in China : save our sources / G.Baarse,P.J.M.Kerssens, 1991. - 10 p. - Текст : непосредственный.
Kerssens P.J.M. Storm surge barrier in the Rotterdam waterway : A new approachPaper presented at the 6 congr.of the Asian and Pacific regional div.of the IAHR, Kyoto, July 20-22, 1988 / P.J.M.Kerssens,J.V.Oorschot,B.V.D.Pot, 1988. - 7(335-342) p. p. - Текст : непосредственный.