ŠTRUMBERGER, Nada; BRADVICA, Renata; VLAKIĆ, Saša. Liquefied Petroleum Gas as Automotive Fuel in Environmental Protection. Promet - Traffic&Transportation, [S. l.], v. 13, n. 5, p. 343–348, 2012. Disponível em: https://traffic2.fpz.hr/index.php/PROMTT/article/view/1966. Acesso em: 27 aug. 2025.