Mahomed, Nawaz, and Michał Kleiber. “An Aspect Ratio Condition for the Buckling and Folding of Polymeric Jets in Injection Mould Filling”. Computer Assisted Methods in Engineering and Science, vol. 5, no. 3, May 2023, pp. 227-43, https://cames3.ippt.pan.pl/index.php/cames/article/view/1341.