%0 Journal Article %A B. E. Durakov %T On Some Groups of 2-RankĀ 1 %J Trudy Instituta matematiki i mehaniki %D 2019 %P 64-68 %V 25 %N 4 %U http://geodesic.mathdoc.fr/item/TIMM_2019_25_4_a5/ %G ru %F TIMM_2019_25_4_a5