Data on the web/ 
Abiteboul,Serge 
 - 1st ed. 
 - California:  Morgan Kaufmann Publishers,  2000. 
 - 257 p. 
<br/><br/><label>ISBN: </label>9781558606227 
<br/><br/><label>Dewey Class. No.: </label>005.72  / ABI/D