@inproceedings{DAC-1982-Heyns,
	author        = "Walter Heyns",
	booktitle     = "{Proceedings of the 19th Design Automation Conference}",
	doi           = "10.1145/800263.809195",
	pages         = "113--120",
	publisher     = "{ACM/IEEE}",
	title         = "{The 1-2-3 routing algorithm or the single channel 2-step router on 3 interconnection layers}",
	year          = 1982,
}