Pilarczyk, K.W. <br/><br/>
Stability and profile development of coarse materials and t-heir application in coastal engineering / K.W. Pilarczyk an-d K. Den Boer. 

 - Delft, [Holanda] : Delft Hydraulics Laboratory 
 - [18] p. 
 - Publication No. 293 / Delft Hydraulics Laboratory .