Classical potential theory and its probabilistic counterpart  
Doob, Joseph L. 
 - New York :  Springer-Verlag,  1984 
 - xxiii, 846 p. ;  25 cm. 
 - Grundlehren der mathematischen Wissenschaften ;  262 .
<br/><br/> Includes indexes. 
<br/><br/><label>ISBN: </label>387908811