Jong, R.J. de. <br/><br/>
Mathematical and hudraulic model investigation of longitudi-nal forces on ships in locks with door filling systems / R.-J. de Jong and A. Vrijer. 

 - Delft, [Holanda] : Delft Hydraulics Laboratory 
 - 9 p. 
 - Delft Hydraulics Laboratory ; no. 239 .