Institution: | (1) Department of Quaternary Geology, Tornavägen 13, S-223 63 Lund, Sweden;(2) Geobotanik, Universität Bern, Altenbergrain 21, CH-3013 Bern, Switzerland;(3) Ontario Ministry of the Environment, P.O. Box 39, POA 1E0 Dorset, Ontario, Canada;(4) Department of Geography, University of Newcastle upon Tyne, NE1 7RU Newcastle upon Tyne, United Kingdom;(5) Limnological Research Center, University of Minnesota, 55455 Minneapolis, MN, USA |