%0 Journal Article %A N. P. Volchkova %A Vit. V. Volchkov %T Recovering the laplacian from centered means on balls and spheres of fixed radius %J Problemy analiza %D 2023 %P 96-117 %V 12 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/PA_2023_12_1_a6/ %G en %F PA_2023_12_1_a6