Wang, Wei. “Irrationally Elliptic Closed Characteristics on Symmetric Compact Convex Hypersurfaces in R^8”. Topological Methods in Nonlinear Analysis 61, no. 1 (March 4, 2023): 361–381. Accessed July 22, 2024. https://apcz.umk.pl/TMNA/article/view/42922.