2009
 
Tingting Han, Joost-Pieter Katoen, and Berteun Damman. Counterexample Generation in Probabilistic Model Checking. IEEE Transactions on Software Engineering, 35(2):241–257, 2009.

2008
 
Berteun Damman, Tingting Han, and Joost-Pieter Katoen. Regular Expressions for PCTL Counterexamples. In Proceedings 5th International Conference on Quantitative Evaluation of Systems (QEST). pages 179–188. IEEE CS Press, 2008.