Lopushanskaya, G. P. “Generalized Boundary Values of the Solutions of Semilinear Elliptic Equations from Weighted Functional Spaces”. Ukrains’kyi Matematychnyi Zhurnal 61, no. 4 (April 25, 2009): 472–493. Accessed April 11, 2025. https://umj.imath.kiev.ua/index.php/umj/article/view/3035.