@article{DAN_1991_316_1_a2,
     author = {S. A. Brykalov},
     title = {Existence and nonuniqueness of solutions of some nonlinear},
     journal = {Doklady Akademii Nauk},
     pages = {18--21},
     publisher = {mathdoc},
     volume = {316},
     number = {1},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1991_316_1_a2/}
}