C. Mingsong, Q. Xiaokang, and L. Xuandong. AST '06: Proceedings of the 2006 international workshop on Automation of software test, page 2--8. New York, NY, USA, ACM, (2006)
{. Dobrzański, and L. Kuzniarz. SAC '06: Proceedings of the 2006 ACM symposium on Applied computing, page 1273--1279. New York, NY, USA, ACM Press, (2006)