@inproceedings{ITiCSE-WGR-2004-RolfeP,
	author        = "Timothy J. Rolfe and Paul W. Purdom",
	booktitle     = "{Working Group Reports of the Ninth Conference on Innovation and Technology in Computer Science Education}",
	doi           = "10.1145/1044550.1041664",
	pages         = "83--84",
	publisher     = "{ACM}",
	title         = "{An alternative problem for backtracking and bounding}",
	year          = 2004,
}