@article{DE_1990_26_7_a16,
     author = {P. P. Matus},
     title = {A class of difference schemes on composite grids for non-steady-state problems in mathematical physics},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1241--1254},
     publisher = {mathdoc},
     volume = {26},
     number = {7},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1990_26_7_a16/}
}