Affiliation: | (1) Institute of Physics of the Earth, Academy of Sciences of the USSR, Moscow, (USSR);(2) Computational Centre, Siberian Branch of Academy of Sciences of the USSR, Krasnoyarsk, (USSR);(3) Institute of Geophysics, Academy of Sciences of the Ukr. SSR, Kiev, (USSR);(4) VNHGEOFIZIKA, Ministry of Geology of the USSR, Moscow, (USSR) |