GABA, Y. U.; AGYINGI, C. A. Weak Contractions via λ-sequences. Contemporary Mathematics, [S. l.], v. 4, n. 4, p. 710–720, 2023. DOI: 10.37256/cm.4420232877. Disponível em: https://ojs.wiserpub.com/index.php/CM/article/view/2877. Acesso em: 22 dec. 2024.