AVAGOVICH GRIGORIAN, G. . Oscillation Criteria for the Second Order Linear Functional - Differential Equations With Locally Integrable Coefficients. Sarajevo Journal of Mathematics, [S. l.], v. 14, n. 1, p. 71–86, 2018. Disponível em: https://sjm.anubih.ba/index.php/sjm/article/view/86. Acesso em: 15 oct. 2024.