KUNDU, S. α-Sasakian 3-Metric as a Ricci Soliton. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 65, n. 6, p. 850–856, 2013. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2470. Acesso em: 5 dec. 2025.