1. W. W. L. Au, The Sonar of Dolphins (New York, 1993).
2. M. Johnson, P. T. Madsen, and W. M. X. Zimmer, J. Exp. Biol. 209, 5038 (2006).
3. T. Morisaka, M. Shinohara, and M. Taki, Aquat. Mammals 31 (2), 248 (2005). https://doi.org/10.1578/AM.31.2.2005.248
4. D. Reiss, in Animal Sonar: Processes and Performance, Ed. by P. E. Nachtigall and P. W. B. Moore (Plenum Press, New York, 1988), p. 121.
5. M. C. Caldwell, D. K. Caldwell, and P. L. Tyack, in The Bottlenose Dolphin: Recent Progress in Research, Ed. by S. Leatherwood and R. Reeves (Academic Press, San Diego, 1990), p. 199.