– (with S. Negri & P. Schuster) “Modal logic for induction”, in Advances in Modal Logic 13, N. Olivetti, R. Verbrugge, S. Negri, G. Sandu (eds.), Advances in Modal Logic 2020, Helsinki, Finland (on-line), August 24–28, 2020. Proceedings. College Publications, London. AiML 13 (2020) 209–227


– (with P. Schuster & D. Wessel) “The Jacobson Radical of a Propositional Theory”, in Proof-Theoretic Semantics: Assessment and Future Perspectives. Proceedings of the Third Tübingen Conference on Proof-Theoretic Semantics, 27–30 March 2019, T. Piecha & P. Schroeder-Heister (eds.), Tübingen: University of Tübingen.


– “A generalization of Cantor’s Theorem”, Sarajevo Journal of Mathematics, vol. 14 no. 1.