SnitkoH. A. “Determination of the Lowest Coefficient for a One-Dimensional Parabolic Equation in a Domain With Free Boundary”. Ukrains’kyi Matematychnyi Zhurnal 65, no. 11 (November 25, 2013): 1531–1549. Accessed November 23, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/2532.