PACS:01.60.+q, 29.30.Hs, 28.50.Dr, 21.10.Hw, 61.72.−y, 76.60.−k (all) DOI:10.1070/PU1992v035n11ABEH002279 URL: https://ufn.ru/en/articles/1992/11/e/ Citation: Gul’ko A D, Dzheparov F S, Karpikhin I L, Kalebin S M, Kaftanov V S, Krupchitskii P A, Suvorov A L "Yurii Georgievich Abov (on his seventieth birthday)" Sov. Phys. Usp.35 (11) 997–998 (1992)