Wiącek, M., and E. Schab-Balcerzak. 2013. “Methods of Flammability Reduction of Polystyrene With an Important Role of Chemical Modification. Part I. Combustion Mechanism of Polymers, Flammability Test Methods and Physical Modifications of Polystyrene”. Polimery 58 (3):181-87. https://polimery.ichp.vot.pl/index.php/p/article/view/723.