PACS:01.10.Fv DOI:10.1070/PU1979v022n08ABEH005600 URL: https://ufn.ru/en/articles/1979/8/l/ Citation: Severnyi A B, Kotov V A, Tsap T T "Investigation of the sun's pulsations and the problem of its internal structure" Sov. Phys. Usp.22 667–668 (1979)