Bakker, C. <br/><br/>
Phytoplankton and nutrient dynamics in saline lake grevelin-gen (SW nether lands) under different hydrodynamical condit-ions in 1978-1980 / C. Bakker and I. de Vries. 

 - Delft, [Holanda] : Delft Hydraulics Laboratory 
 - [30] p. 
 - Publication No. 348 / Delft Hydraulics Laboratory .