@article{DE_1999_35_1_a20,
     author = {S. N. Lehtikov},
     title = {A method for realizing finite element schemes for elliptic equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {131--133},
     year = {1999},
     volume = {35},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1999_35_1_a20/}
}