Pietruszka, N., Z. K. Brzozowski, and L. Żabski. “A New Group of Liquid Reactive Nitrogen and Nitrogen-Phosphorus Flame Retardants for Self-Extinguishing Polyurethane Expanded Polymers. Part III. Applications to Rigid Polyurethane Foams”. Polimery 45, no. 6 (September 21, 2022): 428–432. Accessed December 22, 2024. https://polimery.ichp.vot.pl/index.php/p/article/view/2189.