Prociak, A., S. Michałowski, and S. Bąk. “Thermoplastic Polyurethane Foamed under Microwave Irradiation”. Polimery 57, no. 11-12 (December 30, 2012): 786–790. Accessed May 7, 2025. https://ichp.vot.pl/index.php/p/article/view/874.