@article{VLDB-2012-ZengJZ,
	author        = "Qiang Zeng and Xiaorui Jiang and Hai Zhuge",
	ee            = "http://vldb.org/pvldb/vol5/p728_qiangzeng_vldb2012.pdf",
	journal       = "{Proceedings of the VLDB Endowment}",
	number        = 8,
	pages         = "728--739",
	title         = "{Adding Logical Operators to Tree Pattern Queries on Graph-Structured Data}",
	volume        = 5,
	year          = 2012,
}