@inproceedings{SOSP-1969-Kulsrud,
	author        = "Helene E. Kulsrud",
	booktitle     = "{Proceedings of the Second Symposium on Operating Systems Principles}",
	doi           = "10.1145/961053.961095",
	pages         = "105--111",
	publisher     = "{ACM}",
	title         = "{HELPER: an interactive extensible debugging system}",
	year          = 1969,
}