Trizio, Massimo, and Stefania Donadio. “Stick, Twine and a Pinch of the Internet: We Measure the Earth Today With the Method of Eratosthenes”. EDiMaST: Experiences of Teaching with Mathematics, Sciences and Technology 5 (June 3, 2020): 649–673. Accessed April 30, 2025. https://www.edimast.it/index.php/edimast/article/view/67.