MASLYUCHENKO, V. K.; MEL'NIK, V. S. Construction of intermediate differentiable functions. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 70, n. 5, p. 672–681, 2018. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1586. Acesso em: 5 dec. 2025.