@article{DAN_1994_335_5_a7,
     author = {S. V. Kruglikov},
     title = {The duality principle for problems of guaranteed a priori control},
     journal = {Doklady Akademii Nauk},
     pages = {570--572},
     year = {1994},
     volume = {335},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1994_335_5_a7/}
}