@article{MVK_2013_4_3_a5,
     author = {B. A. Pogorelov and M. A. Pudovkina},
     title = {Combinatorial characterization of {XL-layers}},
     journal = {Matemati\v{c}eskie voprosy kriptografii},
     pages = {99--129},
     year = {2013},
     volume = {4},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MVK_2013_4_3_a5/}
}