PILARCZYK, Paweł and GRAFF, Grzegorz. An algorithmic approach to estimating the minimal number of periodic points for smooth self-maps of simply-connected manifolds. Topological Methods in Nonlinear Analysis. Online. 1 March 2015. Vol. 45, no. 1, pp. 273 - 286. [Accessed 3 July 2024]. DOI 10.12775/TMNA.2015.014.