RAY MCMAHON, M. C. WHY MASS APPEARS GRAVITATIONAL. JOURNAL OF ADVANCES IN PHYSICS, [S. l.], v. 11, n. 7, p. 3507–3519, 2016. DOI: 10.24297/jap.v11i5.6116. Disponível em: https://rajpub.com/index.php/jap/article/view/6116. Acesso em: 14 may. 2025.