Institution: | Department of Meteorology, Stockholm University, S 106 91 Stockholm Sweden;, Department of Physics, Lund University, Sölvegatan 14, S 223 62 Lund Sweden;, Istituto FISBAT-CNR, Via de' Castagnoli 1, 40126 Bologna Italy;, Netherlands Energy Research Foundation, P.O. Box 1, 1755 ZG Petten, The Netherlands;;and Institut für Experimentalphysik, Universität Wien, Strudelhofgasse 4, A-1090 Wien Austria |