@inproceedings{SIGMOD-2009-Tunkelang,
	author        = "Daniel Tunkelang",
	booktitle     = "{Proceedings of the 27th ACM SIGMOD International Conference on Management of Data}",
	doi           = "10.1145/1559845.1559957",
	isbn          = "978-1-60558-551-2",
	pages         = "969--970",
	publisher     = "{ACM}",
	title         = "{Design for interaction}",
	year          = 2009,
}