“Singularity of the Digit Inversor in $Q_3$-Representation of the Frac- Tional Part of a Real Number, Its Fractal and Integral Properties”. Neliniini Kolyvannya 18, no. 1 (March 29, 2015): 55–70. Accessed December 8, 2025. https://twinhead.imath.kiev.ua/index.php/nosc/article/view/769.