XU, X. Absolute zero in Casimir vacuum: Physics. International Journal of Fundamental Physical Sciences, [S. l.], v. 10, n. 1, p. 1-4, 2020. DOI: 10.14331/ijfps.2020.330133. Disponível em: https://www.fundamentaljournals.org/index.php/ijfps/article/view/19. Acesso em: 20 may. 2022.