Niki Pfeifer
- Pfeifer, Niki. 2023. “Towards a Conceptual Framework for Conspiracy Theory Theories.” Social Epistemology 37 (4): 510–521. (3 diagrams)
- Pfeifer, Niki, and Giuseppe Sanfilippo. 2017. “Probabilistic Squares and Hexagons of Opposition under Coherence.” International Journal of Approximate Reasoning 88: 282–294. (8 diagrams)
- Pfeifer, Niki, and Giuseppe Sanfilippo. 2017. “Square of Opposition Under Coherence.” In Soft Methods for Data Science, edited by Maria Brigida Ferraro, Paolo Giordani, Barbara Vantaggi, Marek Gagolewski, Maria Ángeles Gil, Przemysław Grzegorzewski, and Olgierd Hryniewicz, 407–414. Cham: Springer. (1 diagram)
- Gilio, Angelo, Niki Pfeifer, and Giuseppe Sanfilippo. 2016. “Transitivity in Coherence-Based Probability Logic.” Journal of Applied Logic 14: 46–64. (1 diagram)
- Pfeifer, Niki, and Gernot D. Kleiter. 2005. “Towards a Mental Probability Logic.” Psychologica Belgica 45 (1): 71–99. (1 diagram)