1. Variability in ionic composition of Swedish lakes and rivers;Ahl;Arch. Hydrobiol.,1980
2. Comparison of methods for estimation of phytoplankton carbon;Ahlgren;Arch. Hydrobiol.,1983
3. Distribution and migration of Peridinium in Lake Kinneret;Berman;Mitt. Internat. Verein. Limnol.,1971
4. Peridinium cinctum fa. westii del marde Galilea, sinonimo de Peridinium gatunense (Dinophyceae);Boltovskoy;Limnobios, La Plata,1983