Wermer, John <br/><br/>
Potential theory / 
John Wermer 
 - 2nd ed. 
 - New York :  Springer-Verlag,  1981 
 - 165 p. :  ill. ;  24 cm. 
 - Lecture notes in mathematics edited by A. Dold and B. Eckmann .
<br/><br/><label>ISBN: </label>0387102760  RM