Finn, Josh, Peter Millington-Hotze, Elsa Monget, Alex Blewitt, and Joshua Ford. “A4_4 I Spy With My Telescope eye. ”. Physics Special Topics 18, no. 1 (November 17, 2019). Accessed May 16, 2025. https://journals.le.ac.uk/index.php/pst/article/view/3316.