%0 Journal Article %A V. P. Platonov %A M. M. Petrunin %A Yu. N. Shteinikov %T Periodic elements $\sqrt{f}$ in elliptic fields with a field of constants of zero characteristic %J Čebyševskij sbornik %D 2020 %P 273-296 %V 21 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CHEB_2020_21_1_a17/ %G ru %F CHEB_2020_21_1_a17