Simon Buckingham Shum Mikael Lind Hans Weigand Proceedings of the 2nd International Conference on Pragmatic Web, ICPW 2007, Tilburg, The Netherlands, October 22-23, 2007 280 2007 978-1-59593-859-6 ICPW ACM International Conference Proceeding Series ACM db/conf/icpw/icpw2007.html