@inproceedings{SIGMOD-1992-MerzK,
	author        = "Ulla Merz and Roger King",
	booktitle     = "{Proceedings of the 22nd ACM SIGMOD International Conference on Management of Data}",
	cdrom         = "SIGMOD92/P002.PDF",
	doi           = "10.1145/130283.130284",
	pages         = "2",
	title         = "{DIRECT: A Query Facility for Multiple Databases}",
	year          = 1992,
}