KHACHATRYAN , Kh. A.; PETROSYAN , H. S. On bounded solutions of a class of nonlinear integral equations on the plane and the Urysohn equation in a quadrant of the plane. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 73, n. 5, p. 695–711, 2021. DOI: 10.37863/umzh.v73i5.6541. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/6541. Acesso em: 11 apr. 2025.