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2. On the general theory of Bose-Einstein condensation and the state of the free boson gas;van den Berg;Helv. Phys. Acta,1986
3. Operator Algebras and Quantum Statistical Mechanics, II;Bratteli,1981
4. Infinite dimensional groups and quantum field theory;Carey;Acta Appl. Math.,1983
5. Some infinite dimensional groups and bundles;Carey;RIMS Kyoto,1984