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2. : Cyanobacteria in the environment. In: (Eds.): Toxic Cyanobacteria in Water. A Guide to Their Public Health Consequences, Monitoring and Management. E & FN Spon on behalf of WHO, London, 1999 pp. 15-40.
3. : Cyanobacterial toxins. In: (Eds.): Toxic Cyanobacteria in Water. A Guide to Their Public Health Consequences, Monitoring and Management. E FN Spon on behalf of WHO, London, 1999, pp. 41-111.
4. : Freshwater blooms. In: (Eds.): The Ecology of Cyanobacteria. Their Diversity in Time and Space. Kluwer Academic Publishers, Dordrecht, 2000, pp. 150-194.