@article {3499,
	title = {Efficient and Effective Spam Filtering and Re-Ranking for Large Web Datasets},
	journal = {Information Retrieval Journal},
	volume = {14},
	year = {2011},
	pages = {441--465},
	doi = {10.1007/s10791-011-9162-z},
	author = {Gordon Cormack and Mark Smucker and Charles Clarke}
}
