@article{MVK_2011_2_2_a4,
     author = {V. N. Sachkov},
     title = {Random mappings with fixed elements},
     journal = {Matemati\v{c}eskie voprosy kriptografii},
     pages = {95--118},
     year = {2011},
     volume = {2},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MVK_2011_2_2_a4/}
}