Present state of the investigations on bed-load movement in Holland

J.J. Elzerman, [H.C. Frijlink, Ministerie van Verkeer en Waterstaat, Rijkswaterstaat, directie Bovenrivieren (RWS, BOR), afdeling Studiedienst]
[Arnhem] : [RWS, BOR]
1951

25 p.
Pp., tab.
Nota 51.25
With ref.