%0 Journal Article %A L. A. Kurdachenko %A N. N. Semko %T On the structure of some groups having finite contranormal subgroups %J Algebra and discrete mathematics %D 2021 %P 109-119 %V 31 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/ADM_2021_31_1_a6/ %G en %F ADM_2021_31_1_a6