@article{DAN_1980_251_3_a6,
     author = {I. E. Kaporin and E. S. Nikolaev},
     title = {A method of fictitious unknowns for solving difference equations of elliptic type in domains of complicated form},
     journal = {Doklady Akademii Nauk},
     pages = {544--548},
     publisher = {mathdoc},
     volume = {251},
     number = {3},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1980_251_3_a6/}
}