Giband, David, and Joan Vicente Rufi. “European Cross-Border Spaces: A Difficult to Define Geographic Object? An Approach from the Perspective of Soft Spaces”. Documents d’Anàlisi Geogràfica 64, no. 3 (September 18, 2018): 421–441. Accessed October 18, 2025. https://ada-dag2.precarietat.net/article/view/v64-n3-giband-rufi.