Bastien, G. . and Rogalski, M. . (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), pp. 63–82. doi: 10.5644/SJM.18.01.05.