1. For a review, see Conformal Invariance in Quantum Field Theory, I.T. Todorov, M.C. Mintchev, V.B. Petkova, Scuola Normale Superiore, Pisa, 1978.
2. M. Sohnius, P. West Phys. Lett. B 100 (1981) 45; S. Mandelstam, Nucl. Phys. B 213 (1983) 149; P.S. Howe, K.S. Stelle, P.K. Townsend, Nucl. Phys. B 214 (1983) 519; Nucl. Phys. B 236 (1984) 125; L. Brink, O. Lindgren, B. Nilsson, Nucl. Phys. B 212 (1983) 401.
3. Infinite conformal symmetry in two-dimensional quantum field theory
4. Chiral correlators in Landau-Ginsburg theories and N=2 superconformal models
5. P. Howe, P. West, Non-perturbative Green's functions in theories with extended superconformal symmetry, hep-th/9509140, Int. Journal. Mod. Phys. to be published.