Majár, János, and Zoltán Várhelyi. “Thibault and Science I. Measure, Distances and Proportions in the Circle”. Acta Periodica Duellatorum 2, no. 1 (October 29, 2015): 67–104. Accessed December 22, 2024. https://bop.unibe.ch/apd/article/view/6998.