@inproceedings{POPL-1973-Beech,
	author        = "David Beech",
	booktitle     = "{Conference Record of the First Symposium on Principles of Programming Languages}",
	doi           = "10.1145/512927.512935",
	editor        = "Patrick C. Fischer and Jeffrey D. Ullman",
	pages         = "87--94",
	publisher     = "{ACM Press}",
	title         = "{On the Definitional Method of Standard PL/1}",
	year          = 1973,
}