KWAK, M. .; LEE, J.; LKHAGVASUREN, . B. A Characterization of Backward Bounded Solutions. Contemporary Mathematics , [S. l.], v. 6, n. 4, p. 4249–4262, 2025. DOI: 10.37256/cm.6420256174. Disponível em: https://ojs.wiserpub.com/index.php/CM/article/view/6174. Acesso em: 15 dec. 2025.