%0 Journal Article
%A D. D. Pervouchine
%T On the closures of orbits of fourth order matrix pencils
%J Izvestiya. Mathematics 
%D 2002
%P 1047-1055
%V 66
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM2_2002_66_5_a4/
%G en
%F IM2_2002_66_5_a4