MIRZOEV, S. S.; SAFAROV, R. F. On holomorphic solutions of some boundary-value problems for second-order elliptic operator differential equations. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 63, n. 3, p. 416–420, 2011. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2726. Acesso em: 5 dec. 2025.