@inproceedings{Straccia08a, 
 Author = {Umberto Straccia}, 
 Booktitle = {Reasoning Web, 4th International Summer School, Tutorial 
Lectures}, 
 Number = {5224}, 
 Pages = {54--103}, 
 Publisher = {Springer Verlag}, 
 Series = {Lecture Notes in Computer Science}, 
 Title = {Managing Uncertainty and Vagueness in Description Logics, Logic Programs and Description Logic Programs}, 
 Year = {2008}}