CHATZARAKIS, G. E.; SELVAM, A. G. M.; JANAGARAJ, R.; DOUKA, M. Oscillation Theorems for Certain Forced Nonlinear Discrete Fractional Order Equations. Communications in Mathematics and Applications, [S. l.], v. 10, n. 4, p. 763–772, 2019. DOI: 10.26713/cma.v10i4.1286. Disponível em: http://www.rgnpublications.com/journals/index.php/cma/article/view/1286. Acesso em: 29 apr. 2024.