1. Bach, R., Braskerud, B., Eggestad, H.O., 2003. Retention of phosphorus and particles in constructed wetlands in the Aker Lake catchment. Jordforsk Report No. 30/03, pp. 36 (in Norwegian).
2. Effect of policy induced measures on suspended sediments and total phosphorus concentrations from three Norwegian agricultural catchments;Bechmann;The Science of the Total Environment,2004
3. Phosphorus loading and response in shallow lakes;Berge,1987
4. Morphometry, hydrology, water quality and calculations of acceptable loading for 15 lakes in Vestfold;Berge,1988
5. Investigations in the Eikeren watershed 1997–98;Berge,1999