Te Yi Chan Yu Lung Wu Bin Shyan Jong Tsong Wuu Lin Interactive and Collaborative Virtual Learning Environment: Virtual Wildlife Park. 622- 2003 conf/icdcsw/2003 ICDCS Workshops http://doi.ieeecomputersociety.org/10.1109/ICDCSW.2003.1203622 db/conf/icdcsw/icdcsw2003.html#ChanWJL03