@article{ZVMMF_1982_22_2_a11,
     author = {K. D. Egorov and V. P. Kandidov and V. I. Ledenev},
     title = {A variational difference scheme in the problem of the self-action of wave beams},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {382--389},
     publisher = {mathdoc},
     volume = {22},
     number = {2},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1982_22_2_a11/}
}