YANG, G.-S.; YOU, C.-D. A NOTE ON DISCRETE OPIAL’S INEQUALITY. Tamkang Journal of Mathematics, [S. l.], v. 23, n. 1, p. 67–78, 1992. DOI: 10.5556/j.tkjm.23.1992.4528. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4528. Acesso em: 24 apr. 2024.