@inproceedings{ICSM-1996-KellerCPZ,
	author        = "Ted Keller and Ned Chapin and Thomas M. Pigoski and Nicholas Zvegintzov",
	booktitle     = "{Proceedings of the 12th International Conference on Software Maintenance}",
	ee            = "http://computer.org/proceedings/icsm/7677/76770034abs.htm",
	isbn          = "0-8186-7677-9",
	pages         = "34--None",
	publisher     = "{IEEE Computer Society}",
	title         = "{How Much Has Software Maintenance Changed Since 1983?}",
	year          = 1996,
}