@article{DE_1984_20_7_a10,
     author = {L. M. Degtyarev and V. V. Drozdov},
     title = {Grids adapted to the solution of elliptic problems in the plane},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1194--1203},
     publisher = {mathdoc},
     volume = {20},
     number = {7},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1984_20_7_a10/}
}