Szarski Jacek <br/><br/>
Differential inequalites 

 - Poland  PWN           1965 
 - 256p.  cm. 
<br/><br/><label>Standard No.: </label>22892 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B331,1:7, K5