IZUCHUKWU, C.; MEWOMO, O. T.; OKEKE, C. C. Systems of variational inequalities and multiple-set split equality fixed-point problems for countable families of multivalued type-one mappings of the demicontractive type. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 71, n. 11, p. 1480–1501, 2019. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1530. Acesso em: 5 dec. 2025.