1. Topology of Hn-spaces and H-squaring operations;Araki;Mem. Fac. Sci. Kyūsyū Univ. Ser. A,1956
2. Geometry of Yang–Mills Fields;Atiyah,1979
3. Topological aspects of Yang–Mills theory;Atiyah;Comm. Math. Phys.,1978
4. The cohomology of quotients of classical groups;Baum;Topology,1965
5. The space of loops on a Lie group;Bott;Michigan Math. J.,1958