@article{DAN_1962_145_4_a4,
     author = {Yu. V. Egorov},
     title = {Some problems in the theory of optimal control},
     journal = {Doklady Akademii Nauk},
     pages = {720--723},
     year = {1962},
     volume = {145},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1962_145_4_a4/}
}