Kraus, Daniela, och Oliver Roth. ”Weighted Distortion in Conformal Mapping in Euclidean, Hyperbolic and Elliptic Geometry”. Annales Fennici Mathematici 31, no. 1 (februari 1, 2006): 111–130. åtkomstdatum maj 17, 2024. https://afm.journal.fi/article/view/135152.