@inproceedings{padl08:xi+,
	address={Berlin, Heidelberg},
	author={Xi, Qian and Fisher, Kathleen and Walker, David and Zhu, Kenny Q.},
	booktitle={PADL '09: Proceedings of the 11th International Symposium on Practical Aspects of Declarative Languages},
	pages={91--106},
	publisher={Springer-Verlag},
	title={Ad Hoc Data and the Token Ambiguity Problem},
	year=2009,
}