Bartl , Walter, and Sebastian Heer. “Assembling Regional Expertise: Co-Creation Workshops in EU-Funded Research on the German Coal Phase-Out”. Serendipities. Journal for the Sociology and History of the Social Sciences, vol. 10, no. 1-2, Jan. 2026, pp. 114-40, doi:10.7146/serendipities.v10i1-2.164272.