FRANK, Susanne. Urban development through the EU: European urban policy and URBAN-approach in the area of conflict of the Lisbon Strategy and the Leipzig Charter. Raumforschung und Raumordnung | Spatial Research and Planning, DE, v. 66, n. 2, p. 107–117, 2008. DOI: 10.1007/BF03183121. Disponível em: https://rur.oekom.de/index.php/rur/article/view/1261. Acesso em: 26 sep. 2026.