T. Fujiwara

Three-Body Relative Equilibria on \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\mathbb{S}^{2}$$\end{document}

E. Pérez-Chavela, T. Fujiwara, 2023, Regular and Chaotic Dynamics.