%0 Journal Article %A V. V. Ostapenko %T A method for reconstructing a difference operator in divergence %J Doklady Akademii Nauk %D 1993 %P 291-293 %V 332 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1993_332_3_a5/ %G ru %F DAN_1993_332_3_a5