%0 Journal Article %A S. D. Berman %A E. Sh. Kerer %T Representations of nilpotent torsion-free groups of class $2$ with two generators %J Funkcionalʹnyj analiz i ego priloženiâ %D 1977 %P 70-71 %V 11 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/FAA_1977_11_4_a8/ %G ru %F FAA_1977_11_4_a8