@article{ZVMMF_1993_33_11_a4,
     author = {V. V. Ostapenko},
     title = {Approximation of the conservation laws on a non-uniform difference},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1663--1680},
     publisher = {mathdoc},
     volume = {33},
     number = {11},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1993_33_11_a4/}
}