1. On Analytic Continuation, Multiplication, and Fourier Transformations of Schwartz Distributions;Bremermann;J. Math. Phys.,1961
2. A. L. Cauchy, Théorie de la Propagation des Ondes. Prix d' Analyse Mathématique. Concours de 1815 et de 1816. (Cited by Balth. van der Pol and H. Bremmer, Operational Calculus, Based on the Two-Sided Laplace Integral, 1950, p. 63.)
3. Some Applications of the Laurent Schwartz Distributions Theory to Network Problems;Clavier,1955
4. The Dirac Delta Function;Clavier,1956
5. Recent Developments in the Theory of Wave Propagation;Courant,1950