@article{SM_1988_61_1_a10,
     author = {I. E. Egorov},
     title = {Analyticity of solutions of singular elliptic equationns},
     journal = {Sbornik. Mathematics},
     pages = {147--153},
     publisher = {mathdoc},
     volume = {61},
     number = {1},
     year = {1988},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1988_61_1_a10/}
}