Pokropski, T., and A. Balas. “Modifications of Epoxy Resins and Polyurethanes. Part I. Polymers With Oxazolidone Rings”. Polimery 48, no. 6 (September 17, 2022): 417–420. Accessed November 21, 2024. https://polimery.ichp.vot.pl/index.php/p/article/view/1878.