TY  - BOOK
AU  - Vries, W. A. de.
TI  - Nautical risk analysis in port and fairway desing / W. A. d-e Vries
CY  - Delft, Holanda : Delft Hydraulics
N1  - "Presented at MARSIM & ICSM 90, Tokyo, Japan, June 4-7, 199-0"
ER  -