Riznyk, Volodymyr     Multidimensional signals and cyclic codes over torus geometry [Текст] / Volodymyr Riznyk // Computer Science and Information Technologies CSIT'2016 : proc. of the XI-th Intern. Scientific and Techn. Conf., 6-10 Sept. 2016, Lviv, Ukraine / Min. of Education and Science of Ukraine, Lviv Polytechn. Nat. Univ. — Lviv : Lviv Polytechnic Publ. House, 2016. — Р. 126-128.