1. O. Bratteli and D. W. Robinson,Operator Algebras and Quantum Statistical Mechanics I, II (Springer-Verlag, New York, 1979, 1981).
2. G. G. Emch,Algebraic Methods in Statistical Mechanics and Quantum Field Theory (Wiley-Interscience, New York, 1972).
3. K.-H. Fichtner and W. Freudenberg, On a probabilistic model of infinite quantum mechanical particle systems,Math. Nachr. 121:171?210 (1985).
4. K.-H. Fichtner and W. Freudenberg, Point process and normal states of boson systems, Preprint, Naturwissenschaftlich-Technisches Zentrum Leipzig (1986).
5. K.-H. Fichtner and W. Freudenberg, Point processes and states of infinite boson systems, Preprint, Naturwissenschaftlich-Technisches Zentrum Leipzig (1986).