Kuznetsov, Alexandr, Yuriy Gorbenko, Ivan Belozertsev, Alina Andrushkevich, and Aleksey Naregniy. 2017. “The Algebraic Immunity of Nonlinear Nodes Symmetric Ciphers”. Computer Science and Cybersecurity, no. 4 (March), 42-55. https://periodicals.karazin.ua/cscs/article/view/8267.