1. Quantization of gauge theories with linearly dependent generators
2. Quantization of gauge systems;Henneaux,1992
3. Geometry of Batalin-Vilkovisky quantization;Schwarz;hep-th/9205088,1992
4. On background-independent open-string field theory
5. A. Sen and B. Zwiebach, Quantum background independence of closed string field theory, MIT preprint CTP #2244, to appear.