FRINGS, Ellen. Back to the Roots. Ökologisches Wirtschaften - Fachzeitschrift, [S. l.], v. 18, n. 5, 2003. DOI: 10.14512/oew.v18i5.265. Disponível em: https://www.oekologisches-wirtschaften.de/index.php/oew/article/view/265. Acesso em: 29 apr. 2024.