Alías, Luis J. <br/><br/>
An introduction to the Omori-Yau maximum principle and its applications/ 
Luis J. Alías, Marco Rigoli. 
 - São Carlos:  RiMa,  2010. 
 - 78 p.;  25 cm. 
<br/><br/><label>ISBN: </label>9788576561828 
<br/><br/><label>Dewey Class. No.: </label>516.36  / A398i