BadajenaA. K., and KarR. “Existence of a Weak Solution for a Class of Nonlinear Elliptic Equations on the Sierpiński Gasket”. Ukrains’kyi Matematychnyi Zhurnal 74, no. 10 (November 27, 2022): 1317 - 1327. Accessed November 21, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/6248.