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Issues/1978/July |
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| Methodological notes |
The four-dimensional group velocity
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PACS: 04.40.+c
DOI: URL: https://ufn.ru/en/articles/1978/7/e/ Citation: Polevoi V G, Rytov S M "The four-dimensional group velocity" Sov. Phys. Usp. 21 630–638 (1978) Оригинал: Полевой В Г, Рытов С М «О четырехмерной групповой скорости» УФН 125 549–565 (1978); |
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