cross-border regions are a domain pursued by regional authorities. Notes and references External links M Perkmann (2003): Cross-Border Regions in Europe: Significance and Drivers of Regional Cross-Border Co-operation. European Urban and Regional Studies, Vol. 10, No. 2, 153–171. M Perkmann (2007): Policy entrepreneurship and multilevel governance: a comparative study of European cross-border regions, Environment and Planning C, Vol: 25, No. 6, 861 - 879. J W Scott (1999) European and North American Contexts for Cross-border Regionalism. Regional Studies, Vol. 33, No. 7, 605 - 617. Borders International relations Types of geographical division