@article{PA_2023_12_1_a6,
     author = {N. P. Volchkova and Vit. V. Volchkov},
     title = {Recovering the laplacian from centered means on balls and spheres of fixed radius},
     journal = {Problemy analiza},
     pages = {96--117},
     publisher = {mathdoc},
     volume = {12},
     number = {1},
     year = {2023},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PA_2023_12_1_a6/}
}