BARBIR, Ana; KRULI´C HIMMELREICH, Kristina; PEˇČARIĆ, Josip. General Opial Type Inequality for Quotient of Functions. Sarajevo Journal of Mathematics, [S. l.], v. 12, n. 2, p. 193–204, 2024. DOI: 10.5644/SJM.12.2.06. Disponível em: https://sjm.anubih.ba/index.php/sjm/article/view/188. Acesso em: 18 jan. 2025.