%0 Journal Article
%A I. E. Koshelev
%T A~modification of the two-grid method for the approximate solution of operator equations of the first kind
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 1994
%P 25-31
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IVM_1994_1_a3/
%G ru
%F IVM_1994_1_a3