Biazzini M, Baudry B. "May the fork be with you": novel metrics to analyze collaboration on GitHub. In Proceedings of the 5th International Workshop on Emerging Trends in Software Metrics - WETSoM 2014 [Internet]. New York, New York, USA: ACM Press; 2014. pp. 37 - 43. http://marbiaz.github.io/docs/Biazzini14b.pdf