Henning Christiansen, Guy Tré, Adnan Yazici, Slawomir Zadrozny, Troels Andreasen, Henrik Legind Larsen <br/><br/>
Flexible Query Answering Systems 

 - Germany  Springer  2011 
<br/><br/><label>ISBN: </label>978-3-642-24764-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer Science<br/>Flexible Query Answering Systems