Grigoriadou, Virginia John, Frank A. Coutelieris, and Kostas Theologou. “History of the Concept of Similarity in Natural Sciences”. Conatus - Journal of Philosophy 6, no. 1 (September 19, 2021): 101–123. Accessed July 11, 2025. https://ejournals.epublishing.ekt.gr/index.php/Conatus/article/view/22955.