1. For a general discussion of this strategy, see R. Haag, Local Quantum Physics, Springer 1996.
2. This concept of localization should not be confused with the problems discussed in connection with the Einstein-Podolski-Rosen paradox, see R. Haag, in The Physicist’s Conception of Nature, J. Mehra ed., Reidel 1973; Local Quantum Physics, Springer 1992, p. 107; A.S.Wightman, in Probabilistic Methods in Mathematical Physics, F. Guerra et al. eds., World Scientific 1992.
3. See O. Bratteli and D.W. Robinson, The Physicist’s Conception of Nature, J. Mehra ed., Reidel 1973loc. cit. Vol. II, Sect. 6.2. For the convenience of the reader, a brief account is presented in the Appendix, Sect. 7.3.
4. D.A. Dubin and G.L. Sewell, Jour, Math. Phys. 11, 2290 (1970);
5. G.L. Sewell, Comm. Math. Phys. 33, 43 (1973);