JETP, Vol. 22,
No. 2,
p. 315 (February 1966)
(Russian original - ZhETF,
Vol. 49,
No. 2,
p. 449,
February 1966
)
Investigation of the Quasilocal Level in the Vibration Spectrum of a Lattice with Heavy Impurity Atoms
N.A. Chernoplekov, M.G. Zemlyanov
Received: March 16, 1965
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