LOAN, N. H. Gravitational Scalar Field in 5-dimensional Kaluza-Klein Spacetime. Communications in Physics, [S. l.], v. 21, n. 2, p. 187, 2011. DOI: 10.15625/0868-3166/21/2/117. Disponível em: https://vjs.ac.vn/index.php/cip/article/view/117. Acesso em: 3 feb. 2023.