1. Braids, links, and mapping class groups;Birman,1974
2. “Introduction to Compact Transformation Groups.”;Bredon,1972
3. “Linear Groups.”;Dickson,1958
4. “Homographies, Quaternions and Rotations.”;Du Val,1964
5. Cyclic normal subgroups of fundamental groups of 3-manifolds;Gordon;Topology,1975