@inproceedings{DAC-1980-Lauther,
	author        = "Ulrich Lauther",
	booktitle     = "{Proceedings of the 17th Design Automation Conference}",
	doi           = "10.1145/800139.804593",
	isbn          = "0-89791-020-6",
	pages         = "603--609",
	publisher     = "{ACM/IEEE}",
	title         = "{A data structure for gridless routing}",
	year          = 1980,
}