Pietruszka, N., Z. Brzozowski, and L. Żabski. “A New Group of Liquid Reactive Nitrogen and Nitrogen-Phosphorus Flame Retardants for Self-Extinguishing Polyurethane Expanded Polymers. Part II. Applications to Flexible Polyurethane Foams”. Polimery, vol. 45, no. 4, Sept. 2022, pp. 282-7, doi:10.14314/polimery.2000.282.