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@article{DE_1984_20_4_a14, author = {O. N. Litvin}, title = {Optimal coordinate functions in the finite element method}, journal = {Differencialʹnye uravneni\^a}, pages = {677--688}, publisher = {mathdoc}, volume = {20}, number = {4}, year = {1984}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1984_20_4_a14/} }
O. N. Litvin. Optimal coordinate functions in the finite element method. Differencialʹnye uravneniâ, Tome 20 (1984) no. 4, pp. 677-688. http://geodesic.mathdoc.fr/item/DE_1984_20_4_a14/