Dawson, Robert J. MacG., and Blair Doyle. “Tilings of the Sphere With Right Triangles III: The Asymptotically Obtuse Families”. The Electronic Journal of Combinatorics 14, no. 1 (July 5, 2007): R48. Accessed March 28, 2026. https://www.combinatorics.org/ojs/index.php/eljc/article/view/v14i1r48.