Nour, M. A., and M. M. Hassanien. “Effect of Copper Chelate of Pyridineanilide Modified Montmorillonite on the Flammability and Thermal Stability of Polypropylene”. Polimery, vol. 50, no. 5, Sept. 2022, pp. 371-3, https://polimery.ichp.vot.pl/index.php/p/article/view/1642.