@article{DAN_1974_219_4_a11,
     author = {Ho\`ang Tụy},
     title = {On a general minimax theorem},
     journal = {Doklady Akademii Nauk},
     pages = {818--821},
     publisher = {mathdoc},
     volume = {219},
     number = {4},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1974_219_4_a11/}
}