Keplerian Action, Convexity Optimization, and the 4-Body Problem. Analysis in Theory and Applications, [S. l.], v. 37, n. 1, p. 24–58, 2022. DOI: 10.4208/ata.2021.pr80.04. Disponível em: https://www.global-sci.com/index.php/ata/article/view/8212. Acesso em: 6 dec. 2025.