@article{DAN_1975_221_1_a0,
     author = {K. I. Babenko},
     title = {Some remarks on the discretization of elliptic problems},
     journal = {Doklady Akademii Nauk},
     pages = {11--14},
     publisher = {mathdoc},
     volume = {221},
     number = {1},
     year = {1975},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1975_221_1_a0/}
}