A. Ayerbe, und I. Vazquez. Computer Software and Applications Conference, 1998. COMPSAC '98. Proceedings. The Twenty-Second Annual International, (August 1998)
T. Omori, und K. Maruyama. MSR '08: Proceedings of the 2008 international workshop on Mining software repositories, Seite 31--34. New York, NY, USA, ACM, (Mai 2008)