@article{DE_1968_4_1_a12,
     author = {G. N. Yakovlev},
     title = {The first boundary value problem for a certain elliptic equation which degenerates on the boundary of the domain},
     journal = {Differencialʹnye uravneni\^a},
     pages = {140--146},
     publisher = {mathdoc},
     volume = {4},
     number = {1},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1968_4_1_a12/}
}