HEILAND, Stefan; TISCHER, Martin. The modular design of sustainability-indicator systems: An approach towards improving the effectiveness of indicator systems in local-authority practice. Raumforschung und Raumordnung | Spatial Research and Planning, DE, v. 62, n. 1, p. 27–35, 2004. DOI: 10.1007/BF03183465. Disponível em: https://rur.oekom.de/index.php/rur/article/view/1539.. Acesso em: 5 may. 2024.