Daniel Schwabe, Virgilio Almeida, Hartmut Glaser, Ricardo Baeza-Yates, & Sue Moon (editors), Proceedings of the IW3C2 WWW 2013 Conference, May 13-17, 2013, Rio de Janeiro, Brazil. IW3C2 2013, ISBN 978-1-4503-2035-1.
http://www2013.org/papers/proceedings.htm