GOMEZ, J.; ENGHOLM, D. Natural Constants as Properties of the Spacetime Structure. IPI Letters, [S. l.], v. 1, p. 30–40, 2023. DOI: 10.59973/ipil.19. Disponível em: https://ipipublishing.org/index.php/ipil/article/view/19. Acesso em: 25 jul. 2024.