Bastien, G., and M. Rogalski. “On the Topological Nature of the Stable Sets Associated to the Second Invariant of the Order $q$ Standard Lyness’ Equation”. Sarajevo Journal of Mathematics 7, no. 1 (June 10, 2024): 31–38. Accessed January 26, 2026. https://www.sjm.anubih.ba/index.php/sjm/article/view/302.