BIGER, Gideon. On Nations and International Boundaries – The European Case. European Spatial Research and Policy, [S. l.], v. 18, n. 2, p. 69–77, 2011. DOI: 10.2478/v10105-011-0013-0. Disponível em: https://www.czasopisma.uni.lodz.pl/esrap/article/view/7747. Acesso em: 7 dec. 2025.