@article{DAN_1966_170_1_a12,
     author = {L. A. Gutnik},
     title = {The problem of cycling in linear programming},
     journal = {Doklady Akademii Nauk},
     pages = {53--56},
     year = {1966},
     volume = {170},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1966_170_1_a12/}
}