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3. W. Heitler, The Quantum Theory of Radiation, 3rd ed. (Clarendon, Oxford, 1954; Inostrannaya Literatura, Moscow, 1956).
4. Experimental Nuclear Physics, Ed. by E. Segre (Wiley, New York, 1953; Inostrannaya Literatura, Moscow, 1958), Vol. 1.
5. A. I. Akhiezer and V. B. Berestetskii, Quantum Electrodynamics (Wiley, New York, 1965; Nauka, Moscow, 1969).