@article{DAN_1993_331_6_a5,
     author = {N. S. Kukushkin},
     title = {A new sufficient condition for the existence of equilibrium in the},
     journal = {Doklady Akademii Nauk},
     pages = {674--676},
     publisher = {mathdoc},
     volume = {331},
     number = {6},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1993_331_6_a5/}
}