%0 Journal Article %A V. I. Pinchukov %T Nonlinear difference filters and their use in the numerical %J Doklady Akademii Nauk %D 1994 %P 312-315 %V 337 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1994_337_3_a5/ %G ru %F DAN_1994_337_3_a5