Shiryayev, A.N <br/><br/>
Optimal stopping rules 
A.N. Shiryayev 
 - New York  Springer  1978 
 - x  217 
 - Applications of mathematics 8 .
<br/><br/><label>ISBN: </label>3540902562 
<br/><br/><label>Dewey Class. No.: </label>17  / SHIR