PACHPATTE, B. G. ON LIEB AND THIRRING TYPE DISCRETE INEQUALITIES. Tamkang Journal of Mathematics, [S. l.], v. 22, n. 2, p. 145–151, 1991. DOI: 10.5556/j.tkjm.22.1991.4587. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/4587. Acesso em: 18 aug. 2022.