1. Berg, K., O. M. Skulberg, R. Skulberg, B. Underdol & T. Wiltén: Observations of toxic blue-green algae (cyanobacteria) in some Scandinavian lakes. In preparation.
2. Carmichael, W. W.: Freshwater Blue-green Algae (Cyanobacteria) Toxins — A Review. In : The Water Environment — Algal Toxins and Health. Ed.: W. W. Carmichael. Plenum Press, New York 1981, pp. 1–13.
3. Carmichael, W. W.: Chemical and toxicological studies of the toxic freshwater cyanobacteria Microcystis aeruginosa, Anabaena flos-aquae and Aphanizomenon flos-aquae. S. Afr. J. Sci. 1982, 78, 367–372.
4. Carmichael, W. W., P. R. Gorham & D. F. Biggs: Two laboratory case studies on the oral toxicity to calves of the freshwater cyanophyte (blue-green alga) Anabaena flos-aquae NRC-44-1. Ganad. vet. J. 1977, 18, 71–75.
5. Codd, G. A.: Toxins of freshwater cyanobacteria. Microbiol. Sci. 1984, 1, 48–52.