@inproceedings{SIGMOD-2008-JinXRW,
	author        = "Ruoming Jin and Yang Xiang and Ning Ruan and Haixun Wang",
	booktitle     = "{Proceedings of the 26th ACM SIGMOD International Conference on Management of Data}",
	doi           = "10.1145/1376616.1376677",
	isbn          = "978-1-60558-102-6",
	pages         = "595--608",
	publisher     = "{ACM}",
	title         = "{Efficiently answering reachability queries on very large directed graphs}",
	year          = 2008,
}