@article{DAN_1967_173_1_a4,
     author = {A. I. Guseinov and M. A. Abduragimov},
     title = {On a nonlinear boundary value problem},
     journal = {Doklady Akademii Nauk},
     pages = {22--25},
     year = {1967},
     volume = {173},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1967_173_1_a4/}
}