IvanchovN. I., and KinashN. Ye. “Inverse Problem for the Heat Equation in a Rectangular Domain”. Ukrains’kyi Matematychnyi Zhurnal 69, no. 12 (December 25, 2017): 1605-1614. Accessed July 27, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/1807.