Czech-Polak, J., B. Przybyszewski, M. Heneczkowski, A. Czulak, and M. Gude. “Effect of Environmentally-Friendly Flame Retardants on Fire Resistance and Mechanical Properties of Rigid Polyurethane Foam”. Polimery 61, no. 2 (January 24, 2021): 113-116. Accessed April 24, 2024. http://ichp.vot.pl/index.php/p/article/view/379.