KovalenkoS. S. (2011) “Symmetry analysis and exact solutions of one class of (1 + 3)-dimensional boundary-value problems of the Stefan type”, Ukrains’kyi Matematychnyi Zhurnal, 63(10), pp. 1352-1359. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/2811 (Accessed: 8December2024).