SHYAM LAL SHARMA; SHAHZAD ALI. Vacuum Assisted Climbing Device. Global Journals of Research in Engineering, [S. l.], v. 19, n. A2, p. 29–33, 2019. Disponível em: https://engineeringresearch.org/index.php/GJRE/article/view/1943. Acesso em: 19 may. 2024.