@article{DAN_1969_187_2_a5,
     author = {V. F. Dem'yanov},
     title = {On the minimax problem},
     journal = {Doklady Akademii Nauk},
     pages = {255--258},
     publisher = {mathdoc},
     volume = {187},
     number = {2},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1969_187_2_a5/}
}