1. Ahmed, S., & Potter, D. (2006). NGOs in international politics. Bloomfield: Kumarian Press.
2. Anderson, J., & O’Dowd, L. (1999). Borders, border regions and territoriality: Contradictory meanings, changing significance. Regional Studies, 33(7), 593–604.
3. Autio, E., & Thomas, L. (2014). Innovation ecosystems. In M. Dodgson, D. Gann, & N. Phillips (Eds.), Oxford handbook of innovation management (pp. 204–228). Oxford: Oxford University Press.
4. Blatter, J. (2004). From ‘spaces of place’ to ‘spaces of flows’? Territorial and functional governance in cross-border regions in Europe and North America. International Journal of Urban and Regional Research, 28(3), 530–548.
5. Brooks, D., & Fox, J. (Eds.). (2002). Cross-border dialogues: US-Mexican social movement networking. San Diego: Center for US-Mexican Studies.