1. Topological field theory;Birmingham;Phys. Rep.,1991
2. Quantum field theory and the Jones polynomial;Witten;Comm. Math. Phys.,1989
3. Conformal field theory and geometric quantization;Verlinde,1990
4. Quantum Groups in Two-dimensional Physics;Gomez,1996
5. F.A. Bais, N.M. Muller and B.J. Schroers, A quantum group approach to gravitational scattering in 2+1 dimensions, in preparation.