@incollection{Straccia08,
 Author = {Straccia, Umberto}, 
 Booktitle = {Uncertainty and Intelligent Information Systems}, 
 Chapter = {29},  
 Editor = {B. Bouchon-Meunier, R.R. Yager, C. Marsala, and M. Rifqi}, 
 Publisher = {World Scientific}, 
 Title = {Fuzzy Description Logic Programs},
 ISBN = {978-981-279-234-1},
 Year = {2008}}