@article{DE_1986_22_12_a14,
     author = {V. G. Korneev and K. A. Khusanov},
     title = {Curvilinear finite elements of the class $C_1$ with singular coordinate functions},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2144--2157},
     publisher = {mathdoc},
     volume = {22},
     number = {12},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1986_22_12_a14/}
}