1. L.F. Kinsler, A.R. Frey, A.B. Coppens. and J.V. Sanders, Fundamentals of Acoustics, Fourth Edition, John Wiley & Sons, New York, NY, 2000
2. A.D. Pierce, Acoustics: An Introduction to Its Physical Principles and Applications, McGraw-Hill Book Co., New York, NY, 1981
3. D.T. Blackstock, Fundamentals of Physical Acoustics, John Wiley and Sons, New York, NY, 2000
4. R.S. Burington, Handbook of Mathematical Tables and Formulas, Handbook Publishers, Inc., Sandusky, Ohio, 1940, p. 88
5. J.W. Horton, Fundamentals of Sonar, Second Edition, U. S. Naval Institute, 1959