@article{2001-westfechtel
,author={Bernhard Westfechtel and Bj\orn P. Munch and Reidar Conradi}
,ISSN={0098--5589}
,journal={IEEE Transactions on Software Engineering}
,number={12}
,pages={1111--1133}
,title={{A layered architecture for uniform version management}}
,volume={27}
,year={2001}
}