1. A system of Beltrami equation and corresponding inhomogeneous system;Abdushukurov;Dokl. Akad. Nauk Tadzhik. SSR,1985
2. The Real Analytic Theory of Teichmüller Spaces;Abikoff,1980
3. Zur Theorie der Überlagerungsflächen;Ahlfors;Acta Math.,1935
4. On quasiconformal mappings;Ahlfors;J. Anal. Math.,1953
5. Conformality with respect to Riemann metrics;Ahlfors;Ann. Acad. Sci. Fenn.,1955