@article{DAN_1970_190_3_a5,
     author = {V. N. Vragov},
     title = {The smoothness of weak solutions for a certain elliptic equation that degenerates on the boundary},
     journal = {Doklady Akademii Nauk},
     pages = {514--516},
     publisher = {mathdoc},
     volume = {190},
     number = {3},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1970_190_3_a5/}
}