@article{ZVMMF_1990_30_3_a12,
     author = {G. K. Berikelashvili},
     title = {The convergence in $W_2^2$ of a~difference solution of the {Dirichlet} problem},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {470--474},
     publisher = {mathdoc},
     volume = {30},
     number = {3},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1990_30_3_a12/}
}