2007.
@proceedings{DL-2007-ed, title = "Proc. of the 20th Int. Workshop on Description Logics (DL 2007)", year = "2007", editor = "Diego Calvanese and Enrico Franconi and Volker Haarslev and Domenico Lembo and Boris Motik and Anni-Yasmin Turhan and Sergio Tessaris", volume = "250", publisher = "CEUR-WS.org", series = "CEUR Workshop Proceedings, https://ceur-ws.org/", }url