1. Sound transmission from deep to shallow water;Urick;NOLTR 72-1,1972
2. Some perspectives and recent findings in shallow water acoustics;Urick;NOLTR 71-204,1971
3. Introduction to the Theory of Sound Transmission;Officer,1958
4. Elastic Waves in Layered Media;Ewing,1957
5. Theory of propagation of sound in a half-space of variable sound velocity under conditions of formation of a shaded zone;Pekeris;Journal of the Acoustical Society of America,1946