@inproceedings{LICS-2013-AspertiL,
	acmid         = "2591371",
	author        = "Andrea Asperti and Jean-Jacques Lévy",
	booktitle     = "{Proceedings of the 28th Annual ACM/IEEE Symposium on Logic in Computer Science}",
	doi           = "10.1109/LICS.2013.35",
	isbn          = "978-1-4799-0413-6",
	pages         = "293--300",
	publisher     = "{IEEE Computer Society}",
	title         = "{The Cost of Usage in the λ-Calculus}",
	year          = 2013,
}