1. P. Blanc, Sur la cohomologie continue des groupes localement compacts, Ann. Sci. Ec. Norm. Sup. (4) 12 (1979), no. 2, 137–168.
2. G. Cassinelli, P. Truini, V. S. Varadarajan, Hilbert space representations of the Poincaré group for the Landau gauge, J. Math. Phys.
32 (1991), 1076–1090.
3. C. Conley, Representations of finite length of semidirect product Lie groups, to appear in J. Func. Anal..
4. C. Conley, Representations of finite length of semidirect product Lie groups II, in progress.
5. F. du Cloux, Sur les n-extensions des représentations induites des produits semi-directs, Astérisque
124-125 (1985), 49–128.