NARAIN, Dhruwa; YADAV, Sunil. On Weak concircular Symmetries of Lorentzian Concircular Structure Manifolds. CUBO, A Mathematical Journal, [S. l.], v. 15, n. 2, p. 33–42, 2013. DOI: 10.4067/S0719-06462013000200003. Disponível em: https://cubo.ufro.cl/index.php/cubo/article/view/1307. Acesso em: 12 oct. 2025.