Chatzarakis GE, Selvam AGM, Janagaraj R, Douka M. Oscillation Theorems for Certain Forced Nonlinear Discrete Fractional Order Equations. Comm. Math. Appl. [Internet]. 2019 Dec. 31 [cited 2024 Nov. 24];10(4):763-72. Available from: http://rgnpublications.com/journals/index.php/cma/article/view/1286