GIOVANNELLI, F.; SABAU-GRAZIATI, L. The Intriguing Nature of the Cataclysmic Variable SS Cygni. Acta Polytechnica, Prague, Czech Republic, v. 52, n. 1, 2012. DOI: 10.14311/1498. Disponível em: https://ojs.cvut.cz/ojs/index.php/ap/article/view/1498. Acesso em: 5 apr. 2025.