Tikhonov A N <br/><br/>
Differential equations 

 - Berlin  Spinger           1985 
 - 238p.  cm. 
<br/><br/><label>Standard No.: </label>24325 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B33, M5