Espinar, José M. <br/><br/>
Maximum principles and geometric applications/ 
José M. Espinar. 
 - Brasilia:  IMPA/UNB,  2014. 
 - 44 p.;  21 cm. 
<br/><br/><label>ISBN: </label>9788523011192 
<br/><br/><label>Dewey Class. No.: </label>515.353  / E77m