@article{DAN_1980_250_1_a4,
     author = {A. I. Ibragimov},
     title = {On the behavior in the neighborhood of boundary points and theorems on removable sets for second order elliptic equations with continuous coefficients},
     journal = {Doklady Akademii Nauk},
     pages = {25--28},
     publisher = {mathdoc},
     volume = {250},
     number = {1},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1980_250_1_a4/}
}