Institution: | (1) The Blackett Laboratory, Imperial College, London, SW7 2BZ, U.K.;(2) Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, 91109, U.S.A.;(3) Technische Universitat Braunschweig, D-38106 Braunschweig, Germany;(4) UCLA Institute of Geophysics and Planetary Physics, Los Angeles, CA, 90024-1567, U.S.A.;(5) KFKI Research Institute for Particle and Nuclear Physics, PO Box 49, H-1525 Budapest, Hungary;(6) Institute for Geophysics and Meterology, Köln University, 50923 Köln, Germany;(7) Department of Physics and Astronomy, Leicester University, Leicester, LE1 7RH, U.K. |