@article{ZVMMF_1987_27_4_a4,
     author = {P. N. Vabishchevich and P. A. Pulatov},
     title = {Numerical solution of the exterior {Neumann} problem},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {536--543},
     publisher = {mathdoc},
     volume = {27},
     number = {4},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1987_27_4_a4/}
}