VON GLEICH, Arnim; HAUM, Rüdiger; PETSCHOW, Ulrich. Guiding principles for sustainability. Ökologisches Wirtschaften - Fachzeitschrift, [S. l.], v. 19, n. 5, 2004. DOI: 10.14512/oew.v19i5.339. Disponível em: https://www.oekologisches-wirtschaften.de/index.php/oew/article/view/339. Acesso em: 1 mai. 2024.