PUCCINI, A. Photon Not Massless: A Possible New Theorem. European Journal of Applied Sciences, [S. l.], v. 12, n. 6, p. 753–800, 2024. DOI: 10.14738/aivp.126.18074. Disponível em: https://journals.scholarpublishing.org/index.php/AIVP/article/view/18074. Acesso em: 22 jan. 2025.