1. Tie strength metrics to rank pairs of developers from github;Batista Natércia A;Journal of Information and Data Management,2018
2. "May the fork be with you": novel metrics to analyze collaboration on GitHub
3. Empirical analysis of change metrics for software fault prediction
4. Finding refactorings via change metrics
5. NE Fenton and SL Pfleeger. 1997. Software Metrics. NE Fenton and SL Pfleeger. 1997. Software Metrics.