@inproceedings{Callahan:2006:MTE,
	author={S. Callahan and J. Freire and E. Santos and C. Scheidegger and C. Silva and H. Vo},
	booktitle={Proceedings of the IEEE Workshop on Workflow and Data Flow for Scientific Applications (SciFlow)},
	title={Managing the Evolution of Dataflows with VisTrails.},
	year=2006,
}