Fixed point theory for weakly sequentially upper semicontinuous maps with applications to differential inclusions. Neliniini Kolyvannya, [S. l.], v. 5, n. 3, p. 287–296, 2002. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/221. Acesso em: 22 jan. 2026.