@inproceedings{STOC-1974-Lipton,
	author        = "Richard J. Lipton",
	booktitle     = "{Proceedings of the Sixth Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/800119.803900",
	pages         = "230--241",
	publisher     = "{ACM}",
	title         = "{Limitations of Synchronization Primitives with Conditional Branching and Global Variables}",
	year          = 1974,
}