SMITH, R. C.; ECHEVARRIA, J.; HERNANDEZ, J. V.; SZKODY, P. SS Cygni Revisited. Acta Polytechnica CTU Proceedings, [S. l.], v. 2, n. 1, p. 148–151, 2015. DOI: 10.14311/APP.2015.02.0148. Disponível em: https://ojs.cvut.cz/ojs/index.php/APP/article/view/2869. Acesso em: 1 may. 2024.