HAUG, E. G. Planck Speed: the Missing Speed of Physics? Absolute Still Without Breaking Lorentz Symmetry!. European Journal of Applied Physics, [S. l.], v. 4, n. 1, p. 11–18, 2022. DOI: 10.24018/ejphysics.2022.4.1.144. Disponível em: https://www.ej-physics.org/index.php/ejphysics/article/view/144. Acesso em: 8 sep. 2024.