%0 Journal Article %A S. A. Shakhova %T Absolutely Closed Groups in the Class of $2$-Step Nilpotent Torsion-Free Groups %J Matematičeskie zametki %D 2015 %P 936-941 %V 97 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2015_97_6_a11/ %G ru %F MZM_2015_97_6_a11