@article{ZVMMF_1976_16_4_a7,
     author = {I. V. Fryazinov},
     title = {Economical difference schemes for a two-dimensional heat equation with mixed derivatives},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {908--921},
     publisher = {mathdoc},
     volume = {16},
     number = {4},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1976_16_4_a7/}
}