1. Albers, V.M. (1965). Underwater Acoustics Handbook H. University Park: Pennsylvania State University Press.
2. Au, W.W.L., Floyd, R.W., Penner, R.H., and Murchison, A.E. (1974). Measurement of echolocation signals of the Atlantic bottlenose Dolphin, Tursiops truncatus Montagu, in open waters. J. Acoust. Soc. Am. 56: 1280–1290.
3. Bel’kovich, V.M., Borisov, V.I., Gurevich, V.S., and Krushinskaya, N.L. (1969). Echolocation capabilities of the common dolphin (D. delphis). Zoologicheskii Zhurnal 48: 876–883.
4. Brigham, E.O. (1974). The Fast Fourier Transform. Englewood Cliffs, N.J.: Prentice-Hall.
5. Bullock, T.H., Grinnel, A.S., Ikezono, E., Kamedo, K., Katsuki, Y., Nomoto, M., Sato, O., Suga, N., and Yanagisawa, K. (1968). Electrophysiological studies of central auditory mechanism in cetaceans. Zeitschrift für Vergleichende Phys. 59: 117–