@article{DAN_1976_231_3_a6,
     author = {S. A. Tersenov},
     title = {On the first boundary value problem for an equation of elliptic type with singular coefficients within the domain},
     journal = {Doklady Akademii Nauk},
     pages = {543--546},
     publisher = {mathdoc},
     volume = {231},
     number = {3},
     year = {1976},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1976_231_3_a6/}
}