N. I. Ivanchov and N. M. Hryntsiv, “Inverse problem for the strongly degenerate heat equation in a domain with free boundary”, Ukr. Mat. Zhurn., vol. 61, no. 1, pp. 28–43, Jan. 2009, Accessed: Feb. 17, 2026. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/2998