PACS:92.60.−e, 94.20.Vv, 91.25.−r, 94.30.Lr (all) DOI:10.1070/PU1959v002n01ABEH003115 URL: https://ufn.ru/en/articles/1959/1/j/ Citation: Krigyan A Kh "Fifth assembly of the special committee of the international geophysical year and modern problems of geophysics" Sov. Phys. Usp.2 179–182 (1959)