1. Proof of the charge superselection rule in local relativistic quantum field theory
2. On the general problem of Banach extension of representations, cf. Pinczon and J. Simon: Extension of representations and cohomology, Preprint Lab. Phys. Math., Faculté des Sciences Mirande-Dijon. The notion of weak cohomologg introduced here can be related to our own presentation.
3. Gel'fand, Graev, Vilenkin: Generalized function, Vol. 5, Chap. III, § 2.
4. On the 1-cohomology of Lie groups