%0 Journal Article
%A Dominique Arlettaz
%T Exponents for extraordinary homology groups.
%J Commentarii mathematici Helvetici
%D 1993
%P 653-672
%V 68
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMH_1993__68_2_140321/
%F CMH_1993__68_2_140321