Han, Qing and Lin, Fanghua  <br/><br/>
Elliptic partial differential equations   : courant 1  
Han, Qing and Lin, Fanghua  
 - 2nd ed.  
 -   American Mathematical Society  2011 
<br/><br/><label>Dewey Class. No.: </label>515.3533  / T11 HAN.L