@inproceedings{herraiz2007:software_growth,
 author     = {Israel Herraiz and Jesus M. Gonzalez-Barahona and Gregorio Robles},
 title      = {Towards a Theoretical Model for Software Growth},
 booktitle  = {Proceedings of the 4th International Workshop on Mining Software Repositories (MSR)},
 year       = {2007},
 pages      = {21--28},
 doi        = {http://dx.doi.org/10.1109/MSR.2007.31},
 location   = {Minneapolis, MN, USA},
 publisher  = {IEEE Computer Society}
}