@article {3800,
	title = {Modeling Actions of PubMed Users With n-Gram Language Models},
	journal = {Information Retrieval Journal},
	volume = {12},
	year = {2009},
	pages = {487--503},
	doi = {10.1007/s10791-008-9067-7},
	author = {Jimmy Lin and W. John Wilbur}
}
