ZhETF, Vol. 56,
No. 3,
p. 938 (September 1969)
(English translation - JETP,
Vol. 29,
No. 3,
p. 507,
September 1969
)
The issue content is only available in english translation.
WKB Method for Three-dimensional Problems
S.V. Khudyakov
Received: August 22, 1968
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