Pablo César Konstantinos Chorianopoulos Jens F. Jensen Interactive TV: a Shared Experience, 5th European Conference, EuroITV 2007, Amsterdam, The Netherlands, May 24-25, 2007, Proceedings EuroITV Lecture Notes in Computer Science 4471 Springer 2007 978-3-540-72558-9 db/conf/euroitv/euroitv2007.html