CHMARA, Magdalena. A generalized version of the Lions-type lemma. Annales Mathematicae Silesianae, [S. l.], v. 37, n. 2, p. 240–247, 2023. Disponível em: https://trrest.vot.pl/ojsus/index.php/AMSIL/article/view/15880. Acesso em: 5 jul. 2025.