@article {144,
	title = {Reachability Querying: Can It Be Even Faster?},
	journal = {{IEEE} Trans. Knowl. Data Eng.},
	volume = {29},
	year = {2017},
	pages = {683{\textendash}697},
	author = {Jiao Su and Qing Zhu and Hao Wei and Jeffrey Xu Yu}
}
