TY - BOOK AU - Blaauw, H.G. AU - Kaa, E.J. Van de, coaut. TI - Erosion of bottom and sloping banks caused by the screw rac-e of manoeuvring ships / H.G. Blaauw and E.J. Van de Kaa CY - Delft, [Holanda] : Delft Hydraulics Laboratory ER -