@inproceedings{CIKM-2011-ChristoforakiHDMS,
	author        = "Maria Christoforaki and Jinru He and Constantinos Dimopoulos and Alexander Markowetz and Torsten Suel",
	booktitle     = "{Proceedings of the 20th ACM International Conference on Information and Knowledge Management}",
	doi           = "10.1145/2063576.2063641",
	isbn          = "978-1-4503-0717-8",
	pages         = "423--432",
	publisher     = "{ACM}",
	title         = "{Text vs. space: efficient geo-search query processing}",
	year          = 2011,
}