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H. S. Alshawee, β€œOn the Dynamics of the Nonlinear Rational Difference Equation x_{n+1}=Ax_{n}+Bx_{n-a}+((ax_{n-a}+bx_{n-k})/(cx_{n-a}+dx_{n-k}))”, GJSFR, vol. 15, no. F9, pp. 33–43, May 2015.