software](http://www.blackwell-synergy.com/doi/pdf/10.1046/j.1365-2575.2002.00118.x)*
by Payne
* *[Code quality analysis in open source software development](http://www.blackwell-synergy.com/doi/pdf/10.1046/j.1365-2575.2002.00117.x)* by Stamelos, Angelis, Oikonomou, and Bleris
+* *[The social structure of free and open source software development](http://opensource.mit.edu/papers/crowstonhowison.pdf)* by Crowston and Howison
+* *[Applying social network analysis techniques to community-driven libre software projects](http://ladyr.es/assets/files/papers/llopez/jounalPapers/06_Lopez_ijitwe_sna.pdf)* by Lopez, Barahona, Herraiz, Robles
### printed