Whitham, G. B. <br/><br/>
Linear and nonlinear waves / 
by G. B. Whitham. 
 - New York :  John Wiley & Sons,  1974. 
 - xvi, 636 p. :  ill. ;  23 cm. 
<br/><br/> 'A Wiley-Interscience publication.' 
<br/><br/>p. 621-628. 
<br/><br/><label>ISBN: </label>0471940909 
<br/><br/><label>LCCN: </label>74-002070 //r85 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Wave motion, Theory of<br/>Waves