%0 Journal Article
%A V. A. Smirnov
%T Homotopy type and $A_\infty$-group structure
%J Sbornik. Mathematics
%D 1998
%P 1563-1572
%V 189
%N 10
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1998_189_10_a6/
%G en
%F SM_1998_189_10_a6