Poluyanov Leonid V <br/><br/>
Group properties of the acoustic differential equations. 
Poluyanov Leonid V 
 -  1995 
<br/><br/><label>Standard No.: </label>16300 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B33, N5