1. G. A. Korn and T. M. Korn, Mathematical Handbook for Scientists and Engineers: Definitions, Theorems, and Formulas for Reference and Review, Dover Publ. Inc., New York (2000).
2. U. K. Nigul, Ya. A. Metsaveer, N. D. Veksler, and N. D. Kutser, Echo-Signals from Elastic Objects, Valgus, Tallinn (1974), Vol. 2.
3. O. P. Piddubniak, “Frequency characteristics of acoustic waves scattered by an elastic circular cylindrical shell containing a slit along the generatrix,” Dop. Akad. Nauk Ukr., No. 9, 38–40 (1995).
4. L. W. Anson and R. C. Chivers, “Frequency dependence of the acoustic radiation force function (Yp) for spherical targets for a wide range of materials,” J. Acoust. Soc. Amer., 69, No. 6, 1618–1623 (1981). https://doi.org/10.1121/1.385938.
5. T. G. Goldsberry, “Reflection of circumferential waves from a slit in thin-walled cylinder,” J. Acoust. Soc. Amer., 42, No. 6, 1298–1305 (1967). https://doi.org/10.1121/1.1910719.