1. Allen, J., Collison, S., and Luckey, R.: Ohloh Web Site Api (2009),
http://www.ohloh.net
2. Boehm, B.W.: Software Engineering Economics. Prentice Hall (1981)
3. Cavusoglu, H., Cavusoglu, H., Raghunathan, S.: Efficiency of Vulnerability Disclosure Mechanisms to Disseminate Vulnerability Knowledge. IEEE Transactions on Software Engineering 33(3), 171–185 (2007)
4. Cavusoglu, H., Cavusoglu, H., Zhang, J.: Security Patch Management: Share the Burden or Share the Damage? Management Science 54(4), 657–670 (2008)
5. Creswell, J.W.: Educational research: Planning, conducting and evaluating quantitative and qualitative Research. Pearson Education, Inc., Upper Saddle River (2002)