%0 Journal Article
%A Ph. Hall
%A G. Higman
%T On the $p$-length of $p$-soluble groups and reduction theorems for Burnside's problem
%J Matematika
%D 1969
%P 64-104
%V 13
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MAT_1969_13_2_a2/
%G ru
%F MAT_1969_13_2_a2