STEINER, Sanja; GALOVIĆ, Borivoj; MALIĆ, Adolf. Considerations Regarding Development of Alternative Propulsion in Aviation. Promet - Traffic&Transportation, [S. l.], v. 9, n. 5-6, p. 201–208, 2012. Disponível em: https://traffic2.fpz.hr/index.php/PROMTT/article/view/1835. Acesso em: 26 aug. 2025.