@article{IVM_1987_3_a11,
     author = {R. M. Nasyrov and S. R. Nasyrov},
     title = {The convergence of {S.\,A.~Khristianovich's} approximate method for solving the {Dirichlet} problem for an elliptic equation},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {60--67},
     publisher = {mathdoc},
     number = {3},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1987_3_a11/}
}