@inproceedings{HCI-SHI-1993-Graf,
	author        = "Winfried Graf",
	booktitle     = "{Proceedings of the Fifth International Conference on Human-Computer Interaction. Volume 2: Software and Hardware Interfaces}",
	isbn          = "0-444-89540-X",
	pages         = "446--451",
	publisher     = "{Elsevier}",
	title         = "{LAYLAB — A Constraint-Based Layout Manager for Multimedia Presentations}",
	year          = 1993,
}