Büttcher, Stefan, <br/><br/>
Information retrieval :  implementing and evaluating search engines / 
Stefan Büttcher, Charles L. A. Clarke, Gordon V. Cormack. 
 - xxiv, 606 pages :  illustrations ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780262528870  RM219.96 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Search engines--Programming.<br/>Information retrieval.