JETP, Vol. 73,
No. 6,
p. 1122 (December 1991)
(Russian original - ZhETF,
Vol. 100,
No. 6,
p. 2026,
December 1991
)
Urbach's rule and the Lifshits singularity in the spectrum of electronic states of a disordered medium
A.A. Klochikhin, S.G. Ogloblin
Received: July 11, 1991
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