References
- HORSTMAN , U. , 1975 Eutrophication and mass production of blue-green algae in the Baltic . Proceedings of the 3rd Baltic Symposium on Marine Biology , 11-17 June, Helsinki, 1973, in Havsforskningsinstitutets Skrifter, No. 239 , FIMR , Helsinki , pp. 83 – 90 .