@article{ZVMMF_1981_21_4_a9,
     author = {G. P. Astrakhantsev and L. A. Rukhovets},
     title = {The method of relaxation on a sequence of meshes for elliptic equations with natural boundary conditions},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {926--944},
     publisher = {mathdoc},
     volume = {21},
     number = {4},
     year = {1981},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1981_21_4_a9/}
}