@inproceedings{SIGMOD-2007-DeHaanT,
	author        = "David DeHaan and Frank Wm. Tompa",
	booktitle     = "{Proceedings of the 25th ACM SIGMOD International Conference on Management of Data}",
	doi           = "10.1145/1247480.1247567",
	isbn          = "978-1-59593-686-8",
	pages         = "785--796",
	publisher     = "{ACM}",
	title         = "{Optimal top-down join enumeration}",
	year          = 2007,
}