Samborska-Skowron, R., and A. Balas. 2022. “Qualitative Identification of Isocyanurate Rings in Urethane-Isocyanurate Elastomers and Their Hydrolyzates”. Polimery 48 (5):371-74. https://ichp.vot.pl/index.php/p/article/view/1874.