G. Antoniol, H. Gall, D. Penta, M. Pinzger, and M. , Mozilla: Closing the Circle. Re- trieved from http, p.38

M. Bergquist and J. Ljungberg, The power of gifts: organizing social relationships in open source communities, Information Systems Journal, vol.42, issue.4, pp.305-320, 2001.
DOI : 10.1046/j.1365-2575.2001.00111.x

A. Bonaccorsi and C. Rossi, Why Open Source software can succeed, Research Policy, vol.32, issue.7, pp.1243-125810, 2003.
DOI : 10.1016/S0048-7333(03)00051-9
URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.13.4742

K. Crowston, H. Annabi, J. Howison, and C. Masango, Effective work practices for software engineering, Proceedings of the 2004 ACM workshop on Interdisciplinary software engineering research , WISER '04, pp.18-26, 2004.
DOI : 10.1145/1029997.1030003

M. Fischer, M. Pinzger, and H. Gall, Analyzing and Relating Bug Report Data for Feature Tracking Reverse Engineering, Working Conference on (p. 90), p.1287240, 2003.
DOI : 10.1109/wcre.2003.1287240
URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.465.5775

H. Gall, M. Jazayeri, and J. Krajewski, CVS release history data for detecting logical couplings. Sixth International Workshop on Principles of Software Evolution, Proceedings (pp. 13-23). Presented at the Sixth International Workshop on Principles of Software Evolution, pp.10-11091231205, 2003.
DOI : 10.1109/iwpse.2003.1231205

D. M. German, An empirical study of fine-grained software modifications, Empirical Software Engineering, vol.31, issue.6, pp.369-39310, 2006.
DOI : 10.1007/s10664-006-9004-6

R. A. Ghosh and V. Prakash, The Orbiten free software survey, First Monday, vol.5, issue.7, 2000.
DOI : 10.5210/fm.v5i7.769

A. Hars and S. Ou, Working for free? Motivations of participating in open source projects, Proceedings of the 34th Annual Hawaii International Conference on System Sciences, p.7014927045, 2001.
DOI : 10.1109/HICSS.2001.927045

C. Jensen, S. King, and V. Kuechler, Joining Free/Open Source Software Communities: An Analysis of Newbies' First Interactions on Project Mailing Lists, 2011 44th Hawaii International Conference on System Sciences, 2011.
DOI : 10.1109/HICSS.2011.264

C. Jensen and W. Scacchi, Role Migration and Advancement Processes in OSSD Projects: A Comparative Case Study, 29th International Conference on Software Engineering (ICSE'07), pp.364-37410, 2007.
DOI : 10.1109/ICSE.2007.74

A. J. Ko and P. K. Chilana, How power users help and hinder open bug reporting, Proceedings of the 28th international conference on Human factors in computing systems, CHI '10, pp.1665-167410, 2010.
DOI : 10.1145/1753326.1753576

A. J. Ko, B. A. Myers, and . Chau, A Linguistic Analysis of How People Describe Software Problems, Visual Languages and Human-Centric Computing (VL/HCC'06), pp.127-13410, 2006.
DOI : 10.1109/VLHCC.2006.3

B. Kogut and A. Metiu, Open-Source Software Development and Distributed Innovation, Oxford Review of Economic Policy, vol.17, issue.2, 2001.
DOI : 10.1093/oxrep/17.2.248

G. Kroah-hartman, J. Corbet, and A. Mcpherson, Linux kernel development: How fast it is going, who is doing it, what they are doing, and who is sponsoring it. The Linux Foundation Publication http, 2008.

G. Krogh, . Von, S. Spaeth, and K. R. Lakhani, Community, joining, and specialization in open source software innovation: a case study, Research Policy, vol.32, issue.7, pp.1217-1241, 2003.
DOI : 10.1016/S0048-7333(03)00050-7

G. Krogh, . Von, S. Spaeth, and S. Haefliger, Knowledge Reuse in Open Source Software: An Exploratory Study of 15 Open Source Projects, Hawaii International Conference on System Sciences, p.378, 2005.

K. Lakhani and R. G. Wolf, Why Hackers Do What They Do: Understanding Motivation and Effort in Free/Open Source Software Projects. SSRN eLibrary. Retrieved from http, 2003.
DOI : 10.2139/ssrn.443040

L. Lessig, CODE and other laws of cyberspace, 1999.

A. Mockus, R. T. Fielding, and J. D. Herbsleb, Two case studies of open source software development: Apache and Mozilla, ACM Transactions on Software Engineering and Methodology, vol.11, issue.3, pp.309-346, 2002.
DOI : 10.1145/567793.567795
URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.20.2027

A. Nguyen-duc, D. S. Cruzes, C. Ayala, and R. Conradi, Impact of Stakeholder Type and Collaboration on Issue Resolution Time in OSS Projects, Open Source Systems: Grounding Research, pp.1-16, 2011.
DOI : 10.1007/978-3-642-24418-6_1

P. David, A. Watermann, and S. Arora, FLOSS-US: The Free/Libre/Open Source Software Survey for 2003, Technical Report. Standford Institute for Economic and Policy Research, 2003.

R. J. Sandusky and L. Gasser, Negotiation and the coordination of information and activity in distributed software problem management, Proceedings of the 2005 international ACM SIGGROUP conference on Supporting group work , GROUP '05, pp.5-187, 2005.
DOI : 10.1145/1099203.1099238

W. Scacchi, Free and open source development practices in the game community, IEEE Software, vol.21, issue.1, 2004.
DOI : 10.1109/MS.2004.1259221

Y. Ye and K. Kishida, Toward an understanding of the motivation of open source software developers, pp.419-42910, 2003.