ZhETF, Vol. 76,
No. 2,
p. 769 (February 1979)
(English translation - JETP,
Vol. 49,
No. 2,
p. 386,
February 1979
)
The issue content is only available in english translation.
Multiphoton boundary of the excitation spectrum in He II
S.V. lordanskii, L.P. Pitaevskii
Received: September 19, 1978
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