Izydorek, Marek, and Wacław Marzantowicz. “The Borsuk-Ulam Property for Cyclic Groups”. Topological Methods in Nonlinear Analysis 16, no. 1 (September 1, 2000): 65–72. Accessed July 22, 2024. https://apcz.umk.pl/TMNA/article/view/TMNA.2000.030.