KOSZEL, Maciej; BARTKOWIAK, Piotr. Types of Co-Opetition among Local Government Units in Polish Metropolitan Areas. DEMO, Poland, v. 5, n. 9, p. 21–36, 2017. DOI: 10.18559/SOEP.2017.9.2. Disponível em: https://ojs34.fimagis.pl/index.php/demo/article/view/1036. Acesso em: 18 apr. 2026.