1. The index of elliptic operators. III;Atiyah, M. F.;Ann. of Math. (2),1968
2. 2. W. Browder, Free Z, Proc. Georgia Topology Conference (to appear).
3. Piecewise-linear classification of some free 𝑍_{𝑝}-actions on 𝑆^{4𝑘+3};Lee, Ronnie;Michigan Math. J.,1970
4. 4. R. Lee, On the Wall group L(to appear).
5. Some results on involutions of homotopy spheres;López de Medrano, Santiago,1968