ZhETF, Vol. 58,
No. 2,
p. 647 (August 1970)
(English translation - JETP,
Vol. 31,
No. 2,
p. 346,
August 1970
)
The issue content is only available in english translation.
Self-focusing and Focusing of Ultrasound and Hypersound in Metals and Semiconductors
G.A. Askar'yan, V.I. Pustovoit
Received: July 27, 1969
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