MCNALLY, Michael; PIERCE, Robert; SEARLE, Thomas; PHONG, Allen. P3_4 Vacuum Dirigibles. Physics Special Topics, [S. l.], v. 9, n. 1, 2011. Disponível em: https://journals.le.ac.uk/index.php/pst/article/view/1917. Acesso em: 21 may. 2025.