%0 Journal Article %A B. S. Elepov %A G. A. Mikhailov %T A ``walk on spheres'' algorithm for the equation $\Delta u-cu=-g$ %J Doklady Akademii Nauk %D 1973 %P 15-18 %V 212 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1973_212_1_a1/ %G ru %F DAN_1973_212_1_a1