Supercover Semantics for Deontic Action Logic. - Karl Nygren (J. Log. Lang. Inf., 2019)

Deontic Logic Based on Inquisitive Semantics. - Karl Nygren (DEON, 2021)

Modeling legal conflict resolution based on dynamic logic. - Fengkui Ju; Karl Nygren; Tianwen Xu (J. Log. Comput., 2021)

Norms and Alternatives: Logical Aspects of Normative Reasoning. - Karl Nygren (2022)

Normative Properties of Sequential Actions. - Fengkui Ju; Karl Nygren (DEON, 2023)

Free Choice in Modal Inquisitive Logic. - Karl Nygren (J. Philos. Log., 2023)

Inquisitive Conditional Logics. - Karl Nygren (J. Philos. Log., 2025)