%0 Journal Article
%A Yu. E. Boyarintsev
%A I. V. Orlova
%T Block algebro-differential systems and their indices
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 2004
%P 6-13
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IVM_2004_6_a1/
%G ru
%F IVM_2004_6_a1