1986-1987 Junior Scientific Researcher, Laboratory of Radiation Physics, Yerevan
Physics Institute, Yerevan, Armenia
1987-1989 Pre-doctoral position, Department of Plasma Theory, P.N. Lebedev Physical
Institute, Moscow, Russia
1993 Dr. of Physical and mathematical sciences, P.N. Lebedev Physical Institute,
Moscow, Russia
1993-1994 Scientific Researcher, Institute of Radiophysics & Electronics, Ashtarak,
Armenia
1997 Guest Researcher, Laboratoire de Physique des Gaz et des Plasmas,
UniversitA(c) Paris-XI, Orsay, France
1999 DAAD (German Aca...