FÈVRE, Raymond; DIJON, France. Two Cosmological Hypotheses: The Friedmann-Planck Micro-Universes for Vacuum Particles, The Schwarzschild Photon Spheres for Elementary Particles. European Journal of Applied Sciences, [S. l.], v. 9, n. 6, p. 211–228, 2021. DOI: 10.14738/aivp.96.11263. Disponível em: https://scholarpublishing.org/journals/index.php/EJAS/article/view/8114. Acesso em: 30 may. 2026.