@article{DAN_1993_329_4_a0,
     author = {A. Kh. Amirov},
     title = {A boundary value problem for a differential inequality},
     journal = {Doklady Akademii Nauk},
     pages = {389--391},
     publisher = {mathdoc},
     volume = {329},
     number = {4},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1993_329_4_a0/}
}