SURESH, G.; VASAVI, Ch; RAO, T.S.; MURTY, M.S.N. Existence of Ψ-Bounded Solutions for Linear Matrix Difference Equations on Z+. CUBO, A Mathematical Journal, [S. l.], v. 16, n. 1, p. 37–48, 2014. DOI: 10.4067/S0719-06462014000100004. Disponível em: https://cubo.ufro.cl/index.php/cubo/article/view/1286. Acesso em: 12 oct. 2025.