
JETP, Vol. 54,
No. 5,
p. 852 (November 1981)
(Russian original - ZhETF,
Vol. 81,
No. 5,
p. 1603,
November 1981
)
Conditions of applicability of the quasiclassical approximation in three-dimensional problems
Yu. A. Kravtsov, Yu. I. Orlov
Received: April 23, 1981
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