@inproceedings{capiluppi2007:staged,
 author      = {Andrea Capiluppi and Jesus M. Gonzalez-Barahona and Israel Herraiz and Gregorio Robles},
 title       = {Adapting the "staged model for software evolution" to free/libre/open source software},
 booktitle   = {Proceedings of the 9th International Workshop on Principles of software evolution (IWPSE)},
 year        = {2007},
 isbn        = {978-1-59593-722-3},
 pages       = {79--82},
 location    = {Dubrovnik, Croatia},
 doi         = {http://doi.acm.org/10.1145/1294948.1294968},
 publisher   = {ACM},
}