BERTRAM, D. Cross-border regional planning: Functional integration and spatial planning in border regions. Mitteilungen der Fränkischen Geographischen Gesellschaft, [S. l.], n. 70/71, 2025. Disponível em: https://fgg-erlangen.de/fgg/ojs/index.php/mfgg/article/view/656. Acesso em: 12 okt. 2026.