1. Brydges, D.C., Fröhlich, J., and Seiler, E., Ann. Phys. 121, 227 (1977); II, Comm. Math. Phys. 71, 159 (1980); III, Comm. Math. Phys. 79, 353 (1981).
2. Feldman, J., Comm. Math. Phys. 37, 93 (1974).
3. Feldman, J. and Ostenwalder, K., Ann. Phys. 97, 80 (1976).
4. Glimm, J. and Jaffe, A., Fortschr. Phys. 21, 327 (1973).
5. Glimm, J., Jaffe, A., and Spencer, T., ?The Particle Structure of the Weakly Coupled P(?)2 Model and Other Applications of High Temperature Expansions?, in Constructive Quantum Field Theory (eds. G. Velo and A. Wightman), Springer Lecture Notes in Physics 25.