@article{MZM_2007_82_2_a4,
     author = {V. I. Danilov and G. A. Koshevoy},
     title = {Existence of {Fixed} {Points} for {Mappings} of {Finite} {Sets}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {201--206},
     publisher = {mathdoc},
     volume = {82},
     number = {2},
     year = {2007},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2007_82_2_a4/}
}