@inproceedings{DAC-1986-ClarkeF,
	author        = "Edmund M. Clarke and Yulin Feng",
	booktitle     = "{Proceedings of the 23rd Design Automation Conference}",
	doi           = "10.1145/318013.318126",
	pages         = "650--653",
	publisher     = "{IEEE Computer Society Press}",
	title         = "{Escher — a geometrical layout system for recursively defined circuits}",
	year          = 1986,
}