Prociak, A., M. Kurańska, and E. Malewska. “Porous Polyurethane Plastics Synthetized Using Bio-Polyols from Renewable Raw Materials”. Polimery 62, no. 5 (January 15, 2021): 353–363. Accessed June 8, 2025. https://polimery.ichp.vot.pl/index.php/p/article/view/300.