@inproceedings{SIGMOD-2015-Atre,
	author        = "Medha Atre",
	booktitle     = "{Proceedings of the 33rd ACM SIGMOD International Conference on Management of Data}",
	doi           = "10.1145/2723372.2746483",
	isbn          = "978-1-4503-2758-9",
	pages         = "1793--1808",
	publisher     = "{ACM}",
	title         = "{Left Bit Right: For SPARQL Join Queries with OPTIONAL Patterns (Left-outer-joins)}",
	year          = 2015,
}