KOUTANDOS, Spiros. Deriving the Metric of Five-Dimensional Universe . Journal of Natural Science Research and Review, [S. l.], v. 2, n. 07, p. 228–230, 2026. DOI: 10.65150/EP-jnsrr/V2E7/2026-03. Disponível em: https://jnsrr.ep-journals.org/index.php/jnsrr/article/view/78. Acesso em: 13 oct. 2026.