Peterovski I G <br/><br/>
Ordinary differential equations 
Peterovski I G 
 -  1966 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>22523 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B331, K61