@article{MM_2023_35_4_a4,
     author = {V. A. Gordin and D. A. Shadrin},
     title = {Compact approximation of a two-dimensional boundary value problem for elliptic equations of the 2nd order with a discontinuous coefficient},
     journal = {Matemati\v{c}eskoe modelirovanie},
     pages = {88--119},
     publisher = {mathdoc},
     volume = {35},
     number = {4},
     year = {2023},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MM_2023_35_4_a4/}
}