1. Graduate Texts in Mathematics;Beardon, Alan F.,1983
2. Complex analytic dynamics on the Riemann sphere;Blanchard, Paul;Bull. Amer. Math. Soc. (N.S.),1984
3. The dynamics of 2-generator subgroups of 𝑃𝑆𝐿(2,𝐶);Brooks, Robert,1981
4. [GM1] F. W. Gehring and G. J. Martin, Discreteness in Kleinian groups and the iteration theory of quadratic mappings (to appear).
5. Chebyshev polynomials and discrete groups;Gehring, F. W.,1994