@inproceedings{CSCW-1990-Hellman,
	author        = "Rita Hellman",
	booktitle     = "{Proceedings of the Third ACM Conference on Computer Supported Cooperative Work}",
	doi           = "10.1145/99332.99359",
	isbn          = "0-89791-402-3",
	pages         = "255--267",
	publisher     = "{ACM}",
	title         = "{User Support: Illustrating Computer Use in Collaborative Work Contexts}",
	year          = 1990,
}