%0 Journal Article
%A Marques de Sá, Eduardo
%T On the invariant factors of sums of integral matrices
%J Portugaliae mathematica
%D 1989
%P 87-95
%V 46
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/PORMA_1989__46_1_115652/
%G en
%F PORMA_1989__46_1_115652