Hughes, Bruce, Álvaro Martínez-Pérez, and Manuel A. Morón. “Bounded Distortion Homeomorphisms on Ultrametric Spaces”. Annales Fennici Mathematici 35, no. 2 (August 1, 2010): 473–492. Accessed March 7, 2025. https://afm.journal.fi/article/view/135319.