Gladkov, A. L., and T. V. Kavitova. “Initial-Boundary-Value Problem for a Semilinear Parabolic Equation With Nonlinear Nonlocal Boundary Conditions”. Ukrains’kyi Matematychnyi Zhurnal 68, no. 2 (February 25, 2016): 162–174. Accessed April 16, 2025. https://umj.imath.kiev.ua/index.php/umj/article/view/1831.