- 1998 - 現在 , Visiting Scientist, National Inst. for Environmental Studies, Tsukuba, Japan.
- 1990 - 現在 , Senior Research Associate, Inst. Atm. Physics (Rus. Acad. Sci.), Moscow, Russia.
- 1997 - 1998 , Assistant Professor, Tsukuba University, Tsukuba, Japan.
- 1995 - 1996 , Foreign Researcher, Tsukuba University, Tsukuba, Japan.
- 1994 - 1995 , JSPS fellow, Tsukuba University, Tsukuba, Japan.
- 1988 - 1990 , Research Associate, Computing Center (Rus. Acad. Sci.), Moscow, Russia.
- 1985 - 1988 , Junior Research Associate, Natl. Inst. of Forestry (VNILM), Poushkino, Russia.
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