%0 Journal Article
%A S. G. Mikhlin
%T On the index of a system of singular equations
%J Doklady Akademii Nauk
%D 1963
%P 555-558
%V 152
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1963_152_3_a13/
%G ru
%F DAN_1963_152_3_a13