Spitzer, Frank Ludvig <br/><br/>
Principles of random walk 

 - 2nd ed. 
 - New York  Springer-Verlag  1976 
 - xiii, 408 p. 
<br/><br/><label>ISBN: </label> DM48.4 
<br/><br/><label>Dewey Class. No.: </label>519.282 S49P