Institution: | (1) Center for Scientific Computing, Teckniikantie 15 a D, P.O. Box 405, 02101 Espoo, Finland;(2) Nokia Research Center, P.O. Box 407, FIN-00045, Nokia Group, Finland;(3) Department of Ecology and Systematics, Division of Hydrobiology, University of Helsinki, P.O. Box 17 (Arkadiankatu17), FIN-00014, Finland |