@inproceedings{POPL-1987-MeyerMMS,
	author        = "Albert R. Meyer and John C. Mitchell and Eugenio Moggi and Richard Statman",
	booktitle     = "{Conference Record of the 14th Annual Symposium on Principles of Programming Languages}",
	doi           = "10.1145/41625.41648",
	isbn          = "0-89791-215-2",
	pages         = "253--262",
	publisher     = "{ACM Press}",
	title         = "{Empty Types in Polymorphic λ Calculus}",
	year          = 1987,
}