@inproceedings{SIGMOD-1991-Annevelink,
	author        = "Jurgen Annevelink",
	booktitle     = "{Proceedings of the 21st ACM SIGMOD International Conference on Management of Data}",
	cdrom         = "SIGMOD91/P318.PDF",
	doi           = "10.1145/115790.115841",
	pages         = "318--327",
	title         = "{Database Programming Languages: A Functional Approach}",
	year          = 1991,
}