Spohn 2019, p. 244. Spohn, Ulrike (2019). "From Consensus to Modus Vivendi? Pluralistic Approaches to the Challenge of Moral Diversity and Conflict". In Knoll, Manuel; Snyder, Stephen; Şimsek, Nurdane (eds.). New Perspectives on Distributive Justice: Deep Disagreements, Pluralism, and the Problem of Consensus. Berlin: De Gruyter. pp. 243–258. doi:10.1515/9783110537369-016. ISBN978-3-11-053736-9. S2CID187115859.
Spohn 2019, p. 244. Spohn, Ulrike (2019). "From Consensus to Modus Vivendi? Pluralistic Approaches to the Challenge of Moral Diversity and Conflict". In Knoll, Manuel; Snyder, Stephen; Şimsek, Nurdane (eds.). New Perspectives on Distributive Justice: Deep Disagreements, Pluralism, and the Problem of Consensus. Berlin: De Gruyter. pp. 243–258. doi:10.1515/9783110537369-016. ISBN978-3-11-053736-9. S2CID187115859.