Deev, G. E., S. V. Ermakov, and N. A. Korol. “13⁻¹ · x̅|q̅ Divisor”. Russian Journal of Cybernetics 3, no. 2 (May 12, 2022): 74-85. Accessed February 6, 2023. https://en.jcyb.ru/nisii_tech/article/view/126.