1. Collins, M.D. (1988) Fepe User’s Guide, NORDA Technical Note 365.
2. Collins, M. (1989) “Applications and time-domain solution of higher-order parabolic equations in underwater acoustics”, J. Acoust. Soc. Am.
86, 1097–1102
3. Porter, M. B. (1992) The KRAKEN Normal Mode Program, Saclant Undersea Research Centre.
4. Cornuelle, B.D., Worcester, P.F., Hildebrand, J.A., Hodgkiss, W.S., Duda, T.F., Howe, B.M., Mercer, J.A. and Spindel, R.C., “Vertical slice ocean tomography at 1000-km Range in the North- Pacific Ocean”, to be submitted.
5. Private communication with Peter Lonsdale.