[Al-Ekram 2005] Al-Ekram, R., C.J. Kapser, R.C. Holt, and M.W. Godfrey. 2005. Cloning by Accident: An Empirical Study of Source Code Cloning Across Software Systems. Proceedings of the 2005 International Symposium on Empirical Software Engineering (ISESE-05).

[Bellon 2007] Bellon, S., R. Koschke, G. Antoniol, J. Krinke, and E. Merlo. 2007. Comparison and evaluation of clone detection tools. IEEE Transactions on Software Engineering, 33(9): 577‒591.

[Cordy 2003] Cordy, J.R. 2003. Comprehending reality—Practical barriers to industrial adoption of software maintenance automation. Proceedings of the 11th IEEE International Workshop on Program Comprehension: 196‒206.

[German 2009] German D.M., M. Di Penta, Y.-G. Gueheneuc, and G. Antoniol. 2009. Code siblings: Technical and legal implications of copying code between applications. Proceedings of the 6th IEEE International Working Conference on Mining Software Repositories: 81‒90.

[Kapser and Godfrey 2008] Kapser, C.J., and M.W. Godfrey. 2008. ‘Cloning considered harmful’ considered harmful: Patterns of cloning in software. Empirical Software Engineering, 13(6).

[Kapser et al. 2007] Kapser, C.J., P. Anderson, M.W. Godfrey, R. Koschke, M. Rieger, F. van Rysselberghe, and P. Weißgerber. 2007. Subjectivity in clone judgment: Can we ever agree? Proceedings of Dagstuhl Seminar #06301.

[Krinke 2007] Krinke, J. 2007. A study of consistent and inconsistent changes to code clones. Proceedings of the 14th Working Conference on Reverse Engineering.

[LaToza et al. 2006] LaToza, T., G. Venolia, and R. DeLine. 2006. Maintaining mental models: A study of developer work habits. Proceedings of the 28th International Conference on Software Engineering: 492‒501.