1. Inversion formulae for the Laplace transformation;Erdélyi, A.;Philos. Mag. (7),1943
2. Note on an inversion formula for the Laplace transformation;Erdélyi, A.;J. London Math. Soc.,1943
3. The inversion of the Laplace transformation;Erdélyi, A.;Math. Mag.,1950
4. A. Erdélyi, W. Magnus, F. Oberhettinger & F. G. Tricomi, Higher Transcendental Functions, Vol. I, McGraw-Hill, New York, 1953. MR 15, 419.