1. Ågotnes, T., van Benthem, J., van Ditmarsch, H., & Minică, Ş. (2011). Question-answer games. Journal of Applied Non-Classical Logics, 21(3–4), 265–288.
2. Baltag, A. 2001. Logics for insecure communication. In: Proceedings of the 8th conference on Theoretical aspects of rationality and knowledge, pp. 111–121. Morgan Kaufmann Publishers Inc.
3. Baltag, A., Moss, L.S., Solecki, S. (1998). The logic of public announcements, common knowledge, and private suspicions. In: Proceedings of the 7th conference on theoretical aspects of rationality and knowledge, pp. 43–56. Morgan Kaufmann Publishers Inc.
4. Ciardelli, I. (2014). Modalities in the realm of questions: Axiomatizing inquisitive epistemic logic. In B. K. R. Goré & A. Kurucz (Eds.), Advances in modal logic (pp. 94–113). London: College Publications.
5. Ciardelli, I. 2016. Questions in logic. Ph.D. thesis, ILLC, University of Amsterdam.