Therneau,Terry M and Grambsch,Patricia,M, <br/><br/>
Modeling Survival Data : Extending the Cox Model 
By Terry M.Therneau and Patricia M.Grambsch 
 - New York  Springer-Verlag  2000 
 - xiii;350p. 
<br/><br/><label>ISBN: </label>0-387-98784-3 
<br/><br/><label>Dewey Class. No.: </label>B28  / P0