Partial differential equations 
DiBenedetto, Emmanuele. 
 - Boston :  Birkhäuser,  1995 
 - xiv, 416 p. :  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>0817637087 (Boston : acid-free paper) | 3764337087 (Basel : acid-free paper)