@inproceedings{PPDP-2003-WuAS,
	author        = "Dinghao Wu and Andrew W. Appel and Aaron Stump",
	booktitle     = "{Proceedings of the Fifth International Conference on Principles and Practice of Declarative Programming}",
	doi           = "10.1145/888251.888276",
	isbn          = "1-58113-705-2",
	pages         = "264--274",
	publisher     = "{ACM}",
	title         = "{Foundational proof checkers with small witnesses}",
	year          = 2003,
}