KAROL SZOSTEK; ROMAN SZOSTEK. The Existence of a Universal Frame of Reference, in Which it Propagates Light, is Still an Unresolved Problem of Physics. Jordan Journal of Physics , [S. l.], v. 15, n. 5, 2025. Disponível em: https://jjp.yu.edu.jo/index.php/jjp/article/view/1027. Acesso em: 6 oct. 2025.