%0 Journal Article
%A N. T. Petrov
%T On the length of simple groups
%J Doklady Akademii Nauk
%D 1973
%P 537-540
%V 208
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1973_208_3_a9/
%G ru
%F DAN_1973_208_3_a9