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PACS:01.10.−m, 01.10.Fv (all) DOI:10.3367/UFNe.2017.01.038043 URL: https://ufn.ru/en/articles/2018/1/e/ Citation: "The 100th anniversary of the birth of I.M. Lifshits (Scientific session of the Physical Sciences Division of the Russian Academy of Sciences, 18 January 2017)" Phys. Usp.61 84–84 (2018)