1. Superconnections, Thom classes and equivariant differential forms;Mathai;Topology,1986
2. J.M. Figueroa-O'Farrill, Obstructions to Gauging WZ Terms: a Symplectic Curiosity, hep-th/9407153, to appear in the Proceedings of the Workshop on the Geometry of Constrained Dynamical Systems, held June 14–18 1994, at the Isaac Newton Institute for Mathematical Sciences, Cambridge, UK.
3. Nonsemisimple Sugawara Constructions;Figueroa-O'Farrill;Phys. Lett. B,1994
4. J.M. Figueroa-O'Farrill and S. Stanciu, Equivariant Cohomology and Gauged Bosonic σ-Models, hep-th/9407149.