Ta Nguyen Binh Duong Suiping Zhou Wentong Cai Xueyan Tang Rassul Ayani Efficient Zone Mapping Algorithms for Distributed Virtual Environments. 137-144 2009 PADS http://doi.acm.org/10.1145/1577959.1577984 conf/pads/2009 db/conf/pads/pads2009.html#DuongZCTA09