Vries, M. de. <br/><br/>
On the use of movable-bed models for river problems: A state-of-the-art 

 - The Netherlands: Delft Hydraulics:  1990 
 - 15p; illust. 30cm 
 - Delft Hydraulics no; 441 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydraulics