@inproceedings{SIGMOD-1977-SchenkP,
	author        = "Kathryn L. Schenk and James R. Pinkert",
	booktitle     = "{Proceedings of the Seventh ACM SIGMOD International Conference on Management of Data}",
	cdrom         = "SIGMOD77/P010.PDF",
	doi           = "10.1145/509404.509408",
	pages         = "10--20",
	publisher     = "{ACM}",
	title         = "{An Algorithm for Servicing Multi-Relational Queries}",
	year          = 1977,
}