SERGYEYEV, A. Flat Coordinates and Hidden Symmetry for Superintegrable Benenti Systems. Acta Polytechnica, Prague, Czech Republic, v. 47, n. 2-3, 2007. DOI: 10.14311/922. Disponível em: https://ojs.cvut.cz/ojs/index.php/ap/article/view/922. Acesso em: 27 sep. 2024.