β€œOn Self-Circumferences in Minkowski Planes: Doi:10.17398 2605-5686.34.1.19”. Extracta Mathematicae 34, no. 1 (June 1, 2019): 19–28. Accessed December 22, 2024. https://revista-em.unex.es/index.php/EM/article/view/2605-5686.34.1.19.