GHANAM, R. A note on the generalized neutral orthogonal group in dimension four. Tamkang Journal of Mathematics, [S. l.], v. 37, n. 1, p. 93–103, 2006. DOI: 10.5556/j.tkjm.37.2006.182. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/182. Acesso em: 28 apr. 2024.