Institution: | 1. Fachabteilung Hydrobiologie/Limnologie, EAWAG, überlandstrasse 133, CH-8600, Dübendorf, Switzerland 2. K?rntner Institut für Seenforschung, Flatchacherstrasse 70, A-9020, Klagenfurt 3. Institut für Limnologie der ?sterreichischen Akademie der Wissenschaften, Gaisberg 116, A-5310, Mondsee 4. Max-Planck-Institut für Limnologie, D-2320, Pl?n, West Germany 5. Kinneret Limnological Laboratory, Israel Oceanographic and Limnological Research, P.O.B. 8030, 31080, Haifa, Israel 6. Freshwater Institute, 502 University Crescent, Winnipeg 19, Manitoba, Canada 7. Department of Biology, University of Jyv?skyl?, Yliopistonkatu 9, SF-40100, Jyv?skyl?, Finland 8. Institut für Botanik, Sternwartestrasse 15, A-6020, Innsbruck 9. Institute of Botany, University of Thessaloniki, GR-54006, Thessaloniki, Greece 10. Windermere Laboratory, Freshwater Biological Association, Ambleside, England 11. Plankton Ecology Project Group, Institute of Terrestrial Ecology, Bush Estate, EH26 OQB, Penicuik, Midlothian, Scotland 12. Institut for Sporeplanter, University of Copenhagen, DK-1353, Copenhagen, Denmark 13. Dept. of Biology, University of Oslo, Div. Limnology, N-0315, Oslo 3, Norway
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