@article{DAN_1984_276_2_a3,
     author = {I. A. Kipriyanov and V. V. Katrakhov},
     title = {A boundary value problem for second-order elliptic equations in},
     journal = {Doklady Akademii Nauk},
     pages = {274--276},
     publisher = {mathdoc},
     volume = {276},
     number = {2},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1984_276_2_a3/}
}