@conference{chen2007geotracker,
	author={Chen, Y.F.R. and Di Fabbrizio, G. and Gibbon, D. and Jora, S. and Renger, B. and Wei, B.},
	booktitle={Proceedings of the 16th international conference on World Wide Web},
	organization={ACM},
	pages=50,
	title={{Geotracker: geospatial and temporal RSS navigation}},
	year=2007,
}