LOAN, Nguyen Ha. Gravitational Scalar Field in 5-dimensional Kaluza-Klein Spacetime. <b>Communications in Physics</b>, <i>[S. l.]</i>, v. 21, n. 2, p. 187, 2011. DOI: 10.15625/0868-3166/21/2/117. Disponível em: https://vjs.ac.vn/cip/article/view/117. Acesso em: 2 jan. 2026.