@inproceedings{POPL-2001-Sangiorgi,
	author        = "Davide Sangiorgi",
	booktitle     = "{Conference Record of the 28th Symposium on Principles of Programming Languages}",
	editor        = "Chris Hankin and Dave Schmidt",
	isbn          = "1-58113-336-7",
	pages         = "4--13",
	publisher     = "{ACM}",
	title         = "{Extensionality and Intensionality of the Ambient Logics}",
	year          = 2001,
}