@inproceedings{POPL-1987-CaspiPHP,
	author        = "Paul Caspi and Daniel Pilaud and Nicolas Halbwachs and John Plaice",
	booktitle     = "{Conference Record of the 14th Annual Symposium on Principles of Programming Languages}",
	doi           = "10.1145/41625.41641",
	isbn          = "0-89791-215-2",
	pages         = "178--188",
	publisher     = "{ACM Press}",
	title         = "{Lustre: A Declarative Language for Programming Synchronous Systems}",
	year          = 1987,
}