Kaschek, Roland H. <br/><br/>
Intelligent assistant systems : concepts, techniques and technologies 

 - USA  Idea Group Inc.  2007 
 - xxiv, 326 p.; 25.3 cm 
<br/><br/><label>ISBN: </label>1591408792 
<br/><br/><label>Dewey Class. No.: </label>006.33  / KAS