KOPACH, M.I.; OBSHTA, A.F.; SHUVAR, B.A. Two-sided inequalities with nonmonotone sublinear operators. Carpathian Mathematical Publications, [S. l.], v. 7, n. 1, p. 78–82, 2015. DOI: 10.15330/cmp.7.1.78-82. Disponível em: https://journals.pnu.edu.ua/index.php/cmp/article/view/1385. Acesso em: 23 apr. 2024.