Hennessy, Adam, Shangeetha Manivannan, Georgina Page, and Laura Suller. “A2_7 Santa Doesn’t Eat All the Treats”. Physics Special Topics 19, no. 1 (December 18, 2020). Accessed April 2, 2026. https://journals.le.ac.uk/index.php/pst/article/view/3743.