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, [S. l.], v. 18, n. 1, p. 55–70, 2015. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/769. Acesso em: 8 dec. 2025.