Variation of Energy Density and Mass Density of Photon with Wavelength. Indian Journal of Advanced Physics (IJAP), [S. l.], v. 1, n. 2, p. 1–5, 2024. DOI: 10.54105/ijap.B1003.101221. Disponível em: https://www.journals.latticescipub.com/index.php/ijap/article/view/278.. Acesso em: 3 may. 2025.