1. S. J. L. Eijndhove, van, J. de Graaf, “Trajectory spaces, generalized functions and unbounded operators”, Lect. Notes in Math. 1162, Springer-Verlag, Berlin etc., (1985).
2. S. J. L. Eijndhoven, van, J. de Graaf, “A mathematical introduction to Dirac’s formalism”, North-Holland Mathematical Library, Vol. 36, Amsterdam etc., (1986).
3. A. F. M. Eist, ter, Distribution theories based on representations of locally compact Abelian topological groups. To appear as EUT-Report, Eindhoven University of Technology, Eindhoven, (1988).
4. K. Yosida, “Functional Analysis”, 3rd Edition, Grundlehren Band 123, Springer-Verlag, Berlin etc., (1971).
5. N. Jacobson, “Basic Algebra 1”, 2nd Edition, W.H. Freeman, New York, (1985).