1. Carey, A. L. and Murray, M. K.: Mathematical remarks on the cohomology of gauge groups and anomalies, to appear in Intern. J. Modern Phys. A. hep-th/9408141.
2. Wang, B., Carey, A. L. and Murray, M. K.: Higher bundle gerbes, descent equations and 3-Cocycles, Preprint, 1995.
3. Brylinski, J-L.. Loop spaces, Characteristic Classes and Geometric Quantization, Birkhäuser, Basel, 1992.
4. Langmann, E. and Mickelsson, J.: (3+1)-Dimensional Schwinger terms and non-commutative geometry, Preprint. hep-th/9407193.
5. Mickelsson, J.. Current Algebras and Groups, Plenum Press, New York, London, 1989.