Formela, K., M. Cysewska, J. Haponiuk, and A. Stasiek. “The Influence of Feed Rate and Shear Forces on the Devulcanization Process of Ground Tire Rubber (GTR) Conducted in a Co-Rotating Twin Screw Extruder”. Polimery, vol. 58, no. 11-12, Dec. 2013, pp. 906-12, https://ichp.vot.pl/index.php/p/article/view/798.