@article{ZVMMF_1994_34_6_a7,
     author = {V. M. Kovenya and A. S. Lebedev},
     title = {Modifications of the splitting method for constructing economical difference schemes},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {886--897},
     publisher = {mathdoc},
     volume = {34},
     number = {6},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1994_34_6_a7/}
}