Mikael Lindvall Kristian Sandahl Traceability aspects of impact analysis in object-oriented systems. 37-57 1998 10 Journal of Software Maintenance 1 http://dx.doi.org/10.1002/(SICI)1096-908X(199801/02)10:1<37::AID-SMR163>3.0.CO;2-R db/journals/smr/smr10.html#LindvallS98