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2. Representations of canonical anticommutation relations;Araki;Helv. Phys. Acta,1964
3. The method of second quantization;Berezin,1966
4. The electron-positron field, coupled to external electromagnetic potentials as an elementary C∗-algebra theory;Bongaarts;Ann. Phys. (N.Y.),1970
5. Unitarity of dynamical propogators of pertubed Klein-Gordon equations;Chadam;J. Math. Phys.,1968