, 2019a, Institutions of modus vivendi politics, in J. Horton, M. Westphal & U. Willems (eds.), The political theory of modus vivendi, Dordrecht, Springer, pp. 255-272.
, 2019b, Theorising modus vivendi, in J. Horton, M. Westphal & U. Willems (eds.), The political theory of modus vivendi, Dordrecht, Springer, pp. 1-27.
with Horton, J. , Willems, U. (eds) , 2019a, The political theory of modus vivendi, Springer, Dordrecht.