@article{1998-conradi
,note={URL: {\tt http://www.idi.ntnu.no/grupper/su/publ/pdf/scm-survey97.pdf}. Note: available as Norwegian University of Science and Technology SU-report 17-97}
,author={Reidar Conradi and Bernhard Westfechtel}
,ISSN={0360--0300}
,journal={ACM Computing Surveys}
,number={2}
,pages={232--282}
,title={{Version models for software configuration management}}
,volume={30}
,year={1998}
}