Dodd, Peter, Fraser Kettle, Alex Webb, Martyn Bayliss, and Tomas Sukaitis. “A1_2 Duck, duck. Spruce!”. Physics Special Topics 10, no. 1 (November 23, 2011). Accessed June 9, 2025. https://journals.le.ac.uk/index.php/pst/article/view/1999.