Mikhailets, V., A. Murach, and I. Chepurukhina. “Elliptic Operators and Boundary-Value Problems in Spaces of Generalized Smothness ”. Ukrains’kyi Matematychnyi Zhurnal 76, no. 9 (April 16, 2025): 1331–1363. Accessed February 16, 2026. https://umj.imath.kiev.ua/index.php/umj/article/view/8595.