Partyka, Dariusz, and Ken-ichi Sakan. “On Bi-Lipschitz Type Inequalities for Quasiconformal Harmonic Mappings”. Annales Fennici Mathematici 32, no. 2 (August 1, 2007): 579–594. Accessed November 25, 2024. https://afm.journal.fi/article/view/135212.