@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}}