H. Roinestad, J. Burgoon, B. Markines, and F. Menczer. HT '09: Proceedings of the 20th ACM conference on Hypertext and hypermedia, page 327--328. New York, NY, USA, ACM, (2009)
K. Siorpaes, and E. Simperl. Proc. of Linked Data in the Future Internet at the Future Internet Assembly, Ghent 16/17 Dec 2010, volume 700 of CEUR Workshop Proceedings, online, (December 2010)