@article{DAN_1967_174_6_a7,
     author = {V. N. Lebedev and N. T. Tynyanskii},
     title = {Duality theory of concave-convex games},
     journal = {Doklady Akademii Nauk},
     pages = {1264--1267},
     year = {1967},
     volume = {174},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1967_174_6_a7/}
}