V. K. . Maslyuchenko, “Disjoint continuous images with values in the inductive boundaries”, Ukr. Mat. Zhurn., vol. 44, no. 3, pp. 380–384, Apr. 1992, Accessed: Apr. 13, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/8106