Josephine Reid Erik Geelhoed Richard Hull 0002 Kirsten Cater Ben J. C. Clayton Parallel worlds: immersion in location-based experiences. 1733-1736 2005 conf/chi/2005a CHI Extended Abstracts http://doi.acm.org/10.1145/1056808.1057009 db/conf/chi/chi2005a.html#ReidGHCC05