@inproceedings{DAC-1989-DaniellD,
	author        = "James Daniell and Stephen W. Director",
	booktitle     = "{Proceedings of the 26th Design Automation Conference}",
	doi           = "10.1145/74382.74416",
	pages         = "197--202",
	publisher     = "{ACM Press}",
	title         = "{An Object Oriented Approach to CAD Tool Control within a Design Framework}",
	year          = 1989,
}