Victor Callaghan Michael Gardner Bernard Horan John Scott Liping Shen Minjuan Wang A Mixed Reality Teaching and Learning Environment. 54-65 2008 ICHL http://dx.doi.org/10.1007/978-3-540-85170-7_5 conf/ichl/2008 db/conf/ichl/ichl2008.html#CallaghanGHSSW08