@article{DAN_1984_278_1_a0,
     author = {A. P. Abramov},
     title = {A group of symmetries in an optimization problem},
     journal = {Doklady Akademii Nauk},
     pages = {11--12},
     year = {1984},
     volume = {278},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1984_278_1_a0/}
}