MIKHAILETS, V. A.; MURACH, A. A. Regular elliptic boundary-value problem for a homogeneous equation in a two-sided improved scale of spaces. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 58, n. 11, p. 1536–1555, 2006. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3553. Acesso em: 5 dec. 2025.