Asymptotic analysis of random walks : 
Borovkov, Aleksandr Alekseevich. 
 - Cambridge ; | New York :  Cambridge University Press,  2008 
 - xxix, 625 p. :  ill. ;  25 cm. 
<br/><br/> Series numbering from jacket 
<br/><br/><label>ISBN: </label>9780521881173 (hbk.) | 052188117X (hbk.)