ZhETF, Vol. 55,
No. 1,
p. 141 (January 1969)
(English translation - JETP,
Vol. 28,
No. 1,
p. 75,
January 1969
)
The issue content is only available in english translation.
Two-photon Excitation of Luminescence in Ruby Crystals
G.M. Zverev, T.N. Mikhailova, V.A. Pashkov
Received: February 21, 1968
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