Sasimowski, E. “Studies in the Effectiveness of a New Generation Extruder. Part I. The Influence of the Location of the Rotating Sleeve of the Barrel in the Plasticizing System”. Polimery, vol. 56, no. 5, May 2011, pp. 390-6, https://polimery.ichp.vot.pl/index.php/p/article/view/930.