D.V.Bisikalo(1), A.A.Boyarchuk(1), P.V.Kaygorodov(1), O.A.Kuznetsov(1,2), T.Matsuda(3) ((1) Institute of Astronomy of the Russian Acad. of Sci., Moscow, Russia; (2) Keldysh Institute of Applied Mathematics, Moscow, Russia; (3) Department of Earth and Planetary Sciences, Kobe University, Kobe, Japan)
