@article{DAN_1982_266_3_a0,
     author = {S. D. Algazin},
     title = {On discretization of the {Laplace} operator},
     journal = {Doklady Akademii Nauk},
     pages = {521--525},
     publisher = {mathdoc},
     volume = {266},
     number = {3},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1982_266_3_a0/}
}