Riznyk, Volodymyr     Multi-modular optimum coding systems based on remarkable geometric properties of space [Текст] / Volodymyr Riznyk // Advances in intelligent systems and computing : selected papers from the intern. conf. on computer science and inform. technologies, CSIT 2016, Sept. 6-10 Lviv, Ukraine / ed. Natalya Shakhovska. — 2016. — Р. 129.