Weixuan, Li <br/><br/>
R & E research and exposition in mathematics Volume- 5 :  Optimal sequential block search 
/ by Li Weixuan 
 - Berlin;  Heldermann-Verlag:  1984. 
 - vii, 209p. 
<br/><br/><label>ISBN: </label>3885382059 
<br/><br/><label>Dewey Class. No.: </label>515.242  / WEI/R