NOWICKA, Klaudia, SAGAN, Iwona, GRABKOWSKA, Maja, TOKAREK, Agata and WIELGÓRSKA, Monika. Assessing the effectiveness of governance innovations: A comparative study of ten European cities. Bulletin of Geography. Socio-economic Series. Online. 18 February 2026. No. 71, pp. 135-151. [Accessed 20 February 2026]. DOI 10.12775/bgss-2026-0008.