@article{DAN_1958_122_6_a6,
     author = {A. I. Perov},
     title = {A two-point boundary value problem},
     journal = {Doklady Akademii Nauk},
     pages = {982--985},
     publisher = {mathdoc},
     volume = {122},
     number = {6},
     year = {1958},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1958_122_6_a6/}
}