%0 Journal Article %A E. G. D'yakonov %T The use of operators equivalent with respect to spectrum in solving difference analogues of strongly elliptic systems %J Doklady Akademii Nauk %D 1965 %P 1314-1317 %V 163 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1965_163_6_a3/ %G ru %F DAN_1965_163_6_a3