Bastien, Guy, and Marc Rogalski. 2024. “Difference Equations on $\mathbb{R}_*^+$, of the Form $u_{n+2}=\frac{f(u_{n+1})}{u_n+\lambda}$, $\lambda>0$, With Applications to Perturbations of Dynamical Systems”. Sarajevo Journal of Mathematics 18 (1):63-82. https://doi.org/10.5644/SJM.18.01.05.