5White M;Jay E Liarokapis, F. A Virtual Interactive Teaching Environment (VITE) Using XML and Augmented Reality[J].The International Journal of Electrical Engineering Education,2001,38(4):316-329.
6Dan Dwyer;Kathy Barbieri,Helen M Doerr. Creating a Virtual Classroom for Interactive Education on the Web [J]. Computer Networks and ISDN Systems,1995,27(4):897-904.
