An alternative logic for knowability (with Hu Liu and Fan Huang), 2011, In H. van Ditmarsch, J. Lang and S. Ju (eds.), Logic, Rationality and Interaction: Third International Workshop, LORI 2011, Guangzhou, China, pp. 342-355. Springer.
Game-theoretical semantics for many-valued logics (with Shier Ju and Xihua Dai), 2007, In J. van Benthem, S. Ju, and F. Veltman (eds.) A Meeting of Minds: Proceedings of the Workshop on Logic, Rationality and Interaction. pp. 159-171. London: College Publications.