GEORGE A. ANASTASSIOU. New Opial and Polya type inequalities over a spherical shell. Journal of Computational Analysis and Applications (JoCAAA), [S. l.], v. 32, n. 1, p. 211–221, 2024. Disponível em: http://eudoxuspress.com/index.php/pub/article/view/53. Acesso em: 1 sep. 2024.