S. Brakatsoulas, D. Pfoser, R. Salas, и C. Wenk. Proceedings of the 31st International Conference on Very Large Data Bases, стр. 853--864. VLDB Endowment, (2005)
P. Newson, и J. Krumm. Proceedings of the 17th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems, стр. 336--343. ACM, (2009)
R. Rana, C. Chou, S. Kanhere, N. Bulusu, и W. Hu. Proceedings of the 9th ACM/IEEE International Conference on Information Processing in Sensor Networks, стр. 105--116. ACM, (2010)