Giuseppe Valetto Mary E. Helander Kate Ehrlich Sunita Chulani Mark N. Wegman Clay Williams Using Software Repositories to Investigate Socio-technical Congruence in Development Projects. 25 2007 conf/msr/2007 MSR http://doi.ieeecomputersociety.org/10.1109/MSR.2007.33 db/conf/msr/msr2007.html#ValettoHECWW07