@article{MVK_2016_7_3_a6,
     author = {V. G. Smirnov},
     title = {Discrete functions and sparse systems of discrete equations},
     journal = {Matemati\v{c}eskie voprosy kriptografii},
     pages = {93--114},
     year = {2016},
     volume = {7},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MVK_2016_7_3_a6/}
}