%0 Journal Article
%A A. G. Baskakov
%A A. Yu. Duplishcheva
%T Difference operators and operator-valued matrices of the second order
%J Izvestiya. Mathematics 
%D 2015
%P 217-232
%V 79
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM2_2015_79_2_a0/
%G en
%F IM2_2015_79_2_a0