OSPANOV, K. N. Coercive solvability of a generalized Cauchy-Riemann system in the Space $L_p (E)$. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 48, n. 11, p. 1564–1569, 1996. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/5210. Acesso em: 5 dec. 2025.