@article {3792,
	title = {A Study of "Churn" in Tweets and Real-Time Search Queries (Extended Version)},
	journal = {ArXiv},
	volume = {abs/1205.6855},
	year = {2012},
	url = {http://arxiv.org/abs/1205.6855},
	author = {Jimmy Lin and Gilad Mishne}
}
