NOVAK, O.; DIACHENKO, M.; PADUSENKO, E.; KHOLODOV, R. Vacuum Birefringence in the Fields of a Current Coil and a Guided Electromagnetic Wave. Ukrainian Journal of Physics, [S. l.], v. 63, n. 11, p. 979, 2018. DOI: 10.15407/ujpe63.11.979. Disponível em: https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2018569. Acesso em: 1 dec. 2021.