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Îðèãèíàë: Ãèíçáóðã Â Ë «Î Åôèìå Ôðàäêèíå» ÓÔÍ 171 874–876 (2001); DOI: 10.3367/UFNr.0171.200108m.0874
E.S. Fradkin is author of Physics-Uspekhi