@article{DE_1970_6_10_a10,
     author = {V. A. Kondratiev},
     title = {The smoothness of the solution of the {Dirichlet} problem for second order elliptic equations in a piecewise smooth domain},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1831--1843},
     publisher = {mathdoc},
     volume = {6},
     number = {10},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1970_6_10_a10/}
}