1. Riemann Surfaces;Ahlfors,1960
2. Elliptic Partial Differential Equations and Quasiconformal Mappings in the Plane;Astala,2009
3. Riemann Surfaces: Lectures by Lipman Bers;Bers,1958
4. Expanding Thurston Maps;Bonk,2017
5. Metric Spaces of Non-Positive Curvature;Bridson,1999