%0 Journal Article
%A V. P. Serebryakov
%T On the deficiency index of second-order matrix differential operators
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 2000
%P 62-67
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IVM_2000_5_a8/
%G ru
%F IVM_2000_5_a8