@article{DE_1980_16_7_a5,
     author = {I. E. Kaporin and E. S. Nikolaev},
     title = {The method of fictitious unknowns for the solution of difference elliptic boundary value problems in irregular domains},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1211--1225},
     publisher = {mathdoc},
     volume = {16},
     number = {7},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1980_16_7_a5/}
}