DAIDZIC, Nihad E. Mathematical model of hot-air balloon steady-state vertical flight performance. Aviation, [S. l.], v. 25, n. 3, p. 149–158, 2021. DOI: 10.3846/aviation.2021.15330. Disponível em: https://journals.vilniustech.lt/index.php/Aviation/article/view/15330. Acesso em: 9 may. 2025.