
JETP, Vol. 41,
No. 2,
p. 198 (May 1975)
(Russian original - ZhETF,
Vol. 68,
No. 2,
p. 405,
May 1975
)
Operator approach to quantum electrodynamics in an external field. Electron loops
V.N. Baier, V.M. Katkov, V.M. Strakhovenko
Received: July 15, 1974
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