@article{DAN_1978_243_4_a3,
     author = {S. A. Gabov and P. N. Vabishchevich},
     title = {The angular potential for a divergence elliptic operator},
     journal = {Doklady Akademii Nauk},
     pages = {835--838},
     publisher = {mathdoc},
     volume = {243},
     number = {4},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1978_243_4_a3/}
}