%0 Journal Article %A A. I. Grebennikov %T A spline-approximation method for solving some ill-posed problems %J Doklady Akademii Nauk %D 1988 %P 533-537 %V 298 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1988_298_3_a3/ %G ru %F DAN_1988_298_3_a3