1. V. A. Ditkin and A. P. Prudnikov,Operational Calculus, Progress in Mathematics, pp. 1–74. R. V. Gamkrelidze, ed., Plenum Press, N.Y. 1968 (translated from Russian).
2. R. Bellman, R. Kalaba and J. Lockett,Numerical Inversion of the Laplace Transform, American Elsevier, N.Y. 1966.
3. C. Lanczos,Applied Analysis, Prentice-Hall, Englewood Cliffs, N.J. 1956.
4. R. Piessens,Numerical Inversion of the Laplace Transform, IEEE Trans. on Automatic Control, vol. AC-14, No 3, 1969.
5. W. Gautschi,On the Condition of a Matrix Arising in the Numerical Inversion of the Laplace Transform, Math. Comp., 23, 1969, pp. 109–118.