@article{DE_1980_16_7_a9,
     author = {A. D. Lyashko and M. F. Pavlova},
     title = {Investigation of an implicit difference scheme for a variational inequality of nonlinear filtration theory},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1255--1264},
     publisher = {mathdoc},
     volume = {16},
     number = {7},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1980_16_7_a9/}
}