SOHRABPOUR, M.; AZAMI, S. Ricci bi-conformal vector fields on non-reductive four-dimensional homogeneous spaces. Jordan Journal of Mathematics and Statistics, [S. l.], v. 17, n. 4, 2025. Disponível em: https://jjms.yu.edu.jo/index.php/jjms/article/view/553. Acesso em: 31 jan. 2025.