ZhETF, Vol. 57,
No. 5,
p. 1730 (May 1970)
(English translation - JETP,
Vol. 30,
No. 5,
p. 935,
May 1970
)
The issue content is only available in english translation.
Geometrical Optics and Conservation of the Adiabatic Invariant
Yu. A. Kravtsov, N.S. Stepanov
Received: June 9, 1969
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