The following publications are possibly variants of this publication:
- An Efficient Method for Generating Location Updates for Processing of Location-Dependent Continuous QueriesKam-yiu Lam, Özgür Ulusoy, Tony S. H. Lee, Edward Chan, Guohui Li. dasfaa 2001: 218-225
- An Adaptive Direction-Based Location Update Scheme for Next Generation PCS NetworksDong-Xiu Ou, Kam-yiu Lam, De-Cun Dong. DEXA 2002: 413-422 [doi]
- An efficient location update mechanism for continuous queries over moving objectsReynold Cheng, Kam-yiu Lam, Sunil Prabhakar, BiYu Liang. is, 32(4):593-620, 2007. [doi]