@article{Lukasiewicz08b,
 Author = {Thomas Lukasiewicz and Umberto Straccia},
 Journal = {International Journal on Semantic Web and Information Systems},
 Number = {3},
 Pages = {68--89},
 Title = {Tightly Coupled Fuzzy Description Logic Programs under the Answer Set
Semantics for the Semantic Web},
 Volume = {4},
 Year = {2008}}