@article{MVK_2015_6_1_a6,
     author = {S. V. Polin},
     title = {Permutation lattices of equivalence relations on the {Cartesian} products and systems of equations concordant with these {lattices.~I}},
     journal = {Matemati\v{c}eskie voprosy kriptografii},
     pages = {135--158},
     year = {2015},
     volume = {6},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MVK_2015_6_1_a6/}
}