1. Principles of Underwater Sound;Urick,1983
2. Fundamentals of Acoustical Oceanography;Medwin,1998
3. Pulsed circumferential waves on aluminium cylinders in water;Neubauer;J. Acoust. Soc. Am.,1969
4. Circumferential e wave phase velocities for empty, fluid-immersed spherical metal shells;Überall;J. Acoust. Soc. Am.,2002