Brillouin Leon <br/><br/>
Wave propagation and group velocity 

 -  1960 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>36906 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Optics<br/>Physics
<br/><br/><label>Dewey Class. No.: </label>C5:1, K01