Periodic solutions of nonlinear evolution equations with $W_{\lambda_0}$-pseudomonotone maps. Neliniini Kolyvannya, [S. l.], v. 9, n. 2, p. 187–212, 2006. Disponível em: https://nosc.imath.kiev.ua/index.php/nosc/article/view/391. Acesso em: 12 apr. 2026.