Saint Petersburg National Research University of Information Technologies, Mechanics and Optics
PhysNano
International research and
education center for
Physics of Nanostructures
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1969
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1971
1969
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Publications
V.A. Kovarskii
, E.Yu. Perlin. Nonlinear optical effects in a system with degenerate or closely spaced levels in solids. Physica Status Solidi, 36(2) 793-796 (1969)