Comment on "Transient response of an acoustic medium by an excited submerged spherical shell" [J. Acoust. Soc. Am. 109(6), 2789-2796 (2001)].

A closed form solution was derived previously for the response of a submerged spherical shell when the shell was excited by a spatially distributed, transient load at its inner surface [Zakout (2001). J. Acoust.