ORLOV, S. PHOTON MASS. International Journal of Research -GRANTHAALAYAH, [S. l.], v. 6, n. 3, p. 49–54, 2018. DOI: 10.29121/granthaalayah.v6.i3.2018.1497. Disponível em: https://www.granthaalayahpublication.org/journals/granthaalayah/article/view/IJRG18_A03_1200. Acesso em: 30 apr. 2024.