1. V. A. Borovikov and M.Ya. Kel’bert, “The Field near the Wave Front in the Cauchy-Poisson Problem,” Izv. Akad. Nauk SSSR Mekh. Zhidk. Gaza, No. 2, 173–174 (1984) [Fluid Dynamics 19 (2), 321–323 (1984)].
2. C. Chester, B. Friedman, and F. Ursell, “An Extension of the Method of Steepest Descents,” Proc. Cambridge Philos. Soc. 53, 599–611 (1957).
3. J.-M. Clarisse, J.N. Newman, and F. Ursell, “Integrals with a Large Parameter: Water Waves on Finite Depth due to an Impulse,” Proc. R. Soc. Lond. Ser. A. 87, 67–87 (1995).
4. S.Yu. Dobrokhotov, P.N. Zhevandrov, and V. M. Kuzmina, “Asymptotic Behavior of the Solution of the Cauchy-Poisson Problem in a Layer of Nonconstant Thickness,” Math. Zametki 53(6), 141–145 (1993) [Math. Notes 53 (5–6), 657–660 (1993)].
5. M. V. Berry, “Tsunami Asymptotics,” New J. Phys. 7(129), 1–18 (2005).