@article {3960, title = {Special Issue of the Journal of Web Semantics on Ontology-Based Data Access}, journal = {Journal of Web Semantics}, volume = {33}, year = {2015}, pages = {1--2}, doi = {10.1016/j.websem.2015.06.001}, author = {Diego Calvanese and Manolis Koubarakis and David Toman} }