Contains the keyword openbsd

Cerulo L, Cimitile M, Di Penta M, Canfora G. Social interactions around cross-system bug fixings. In Proceedings of the 8th working conference on Mining software repositories - MSR '11. New York, New York, USA: ACM Press; 2011. pp. 143-152.
German DM, Di Penta M, Gueheneuc Y-G, Antoniol G. Code siblings: Technical and legal implications of copying code between applications. In 2009 6th IEEE International Working Conference on Mining Software Repositories (MSR)2009 6th IEEE International Working Conference on Mining Software Repositories. Vancouver, BC, Canada: IEEE; 2009. pp. 81 - 90. PDF icon 81CodeSiblings.pdf (190.99 KB)
Askari M, Holt R. Information theoretic evaluation of change prediction models for large-scale software. In Proceedings of the 2006 international workshop on Mining software repositories [Internet]. New York, NY, USA: ACM; 2006. pp. 126–132. http://doi.acm.org/10.1145/1137983.1138013PDF icon 126InformationTheoretic.pdf (333.99 KB)
Yu L, Schach SR, Chen K, Heller GZ, Offutt J. Maintainability of the kernels of open-source operating systems: A comparison of Linux with FreeBSD, NetBSD, and OpenBSD. J. Syst. Softw. [Internet]. New York, NY, USA: Elsevier Science Inc.; 2006;79:807–815. http://dx.doi.org/10.1016/j.jss.2005.08.014PDF icon YuSchachChen.pdf (1.63 MB)
Fischer M, Oberleitner J, Ratzinger J, Gall H. Mining evolution data of a product family. In Proceedings of the 2005 international workshop on Mining software repositories [Internet]. New York, NY, USA: ACM; 2005. pp. 12-16. http://doi.acm.org/10.1145/1082983.1083145PDF icon 12MiningEvolution.pdf (1.42 MB)