CHATZARAKIS, George E.; SELVAM, A. George Maria; JANAGARAJ, R.; DOUKA, Maria. 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: https://www.rgnpublications.com/journals/index.php/cma/article/view/1286. Acesso em: 13 may. 2026.