%0 Journal Article
%A D. M. Smirnov
%T On reduced free multi-operator groups
%J Doklady Akademii Nauk
%D 1963
%P 44-47
%V 150
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1963_150_1_a10/
%G ru
%F DAN_1963_150_1_a10