
JETP, Vol. 36,
No. 6,
p. 1193 (June 1973)
(Russian original - ZhETF,
Vol. 63,
No. 6,
p. 2255,
June 1973
)
Nature of the Phase Transition under the Conditions of an "Excitonic" Instability in the Electronic Spectrum of a Crystal
R.R. Guseinov, L.V. Keldysh
Received: March 7, 1972
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