@inproceedings{POPL-1994-HarperL,
	author        = "Robert Harper and Mark Lillibridge",
	booktitle     = "{Conference Record of the 21st Symposium on Principles of Programming Languages}",
	doi           = "10.1145/174675.176927",
	editor        = "Hans-Juergen Boehm and Bernard Lang and Daniel M. Yellin",
	isbn          = "0-89791-636-0",
	pages         = "123--137",
	publisher     = "{ACM Press}",
	title         = "{A Type-Theoretic Approach to Higher-Order Modules with Sharing}",
	year          = 1994,
}