J. Wu, S. Wang, C. Chau, L. Zeng, und J. Lin. ICSE '06: Proceedings of the 28th international conference on Software engineering, Seite 632--635. New York, NY, USA, ACM, (2006)
N. Wang, und G. Zeng. ISDPE '07: Proceedings of the The First International Symposium on Data, Privacy, and E-Commerce, Seite 406--408. Washington, DC, USA, IEEE Computer Society, (2007)