Borodin , M.A. (1992) “Existence of the classical solution to the multi -dimensional Stefan problem on a finite interval of time ”, Ukrains’kyi Matematychnyi Zhurnal, 44(12), pp. 1652–1657. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/8191 (Accessed: 5 December 2025).