@inproceedings{HCI-SEC-1997-Ibrahim,
	author        = "Bertrand Ibrahim",
	booktitle     = "{Proceedings of the Seventh International Conference on Human-Computer Interaction. Volume 2: Social and Ergonomic Considerations}",
	isbn          = "0-444-82183-X",
	pages         = "359--362",
	publisher     = "{Elsevier}",
	title         = "{Optimizing Cut-and-Paste Operations in Directed-Graph Editing}",
	year          = 1997,
}