@article{DAN_1987_297_2_a5,
     author = {G. N. Konstantinov},
     title = {Sufficient conditions for optimality of a minimax control problem},
     journal = {Doklady Akademii Nauk},
     pages = {287--290},
     year = {1987},
     volume = {297},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1987_297_2_a5/}
}