JETP, Vol. 40,
No. 3,
p. 449 (February 1975)
(Russian original - ZhETF,
Vol. 67,
No. 3,
p. 904,
February 1975
)
Possibility of four-photon parametric generation of light in gases
V.I. Barantsov, A.K. Popov, G. Kh. Tartakovskii
Received: March 29, 1973
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