“What Councillors Expect of Facilitative Mayors: The Desired Leadership Competencies in Job Advertisements for the Dutch Mayoralty and How They Are Affected by Municipal Size”. Lex Localis - Journal of Local Self-Government, vol. 17, no. 1, Jan. 2019, pp. 179-9, https://doi.org/10.4335/17.1.179-199(2019).