National Research Institute for Earth Science and Disaster Prevention, Tennodai 3-1, 305, Tsukuba-shi, Ibaraki-ken, Japan
Yukio Fujinawa
Institute of Volcanology, 683006, Petropavlovsk-Kamchatsky, USSR
A. V. Koloskov
P.O. Box 23, 70434, Covington, Louisiana, USA
Gerardo G. Tango
Geophysical Research Concern, ul. Stalingradzka 34, 03-301, Warsaw, Poland
Lech Stefaníak
Institute for Geophysics, Meteorology, and Space Physics Department of Physics, University of Alberta, T6G 2J1, Edmonton, Canada
Douglas R. Schmitt
Earthquake Research Institute of Tokyo University, Yayoi 1-1-1, Bunkyo-ku, Tokyo, Japan
Kei Katsumata
Department of Geology and Geophysics, University of Connecticut, 06269-2045, Storrs, CT, USA
Vernon F. Cormier
Polar Geophysical Institute, 184200, Apatity, Murmansk Region, USSR
Wladislaw Lyatsky
Institute of Geophysics, University of Warsaw, ul. Pasteura 7, PL-02-093, Warszawa, Poland
Krzysztof Haman
CNES/GRGS, 18, Av. E. Belin, 31055, Toulouse, France
P. Vincent
Institute of Geophysics, University of Warsaw, ul. Pasteura 7, 02-093, Warsaw, Poland
Konrad Bajer
Institute of Environmental Engineering, Warsaw University of Technology, Nowowiejska 20, 00-653, Warsaw, Poland
Henryk Piwkowski