1. Achiche, S., Howard, T.J., Ástvaldsdóttir, A., Andresen, O., McAloone, T.C., 2012. Open Innovation Practices in a Cluster Context: A Medicon Valley Case Study.
2. Alonso, W., 1973. Urban Zero Population Growth. Daedalus 102 (4), 191-206.
3. Andersson, M., Karlsson, C., 2004. Regional innovation systems in small & medium-sized regions a critical review & assessment. royal institute of technology, CESIS - centre of excellence for science and innovation studies, Working Paper Series Econ. Inst. Innov.
4. Anttiroiko, A.-V., 2016. City-as-a-platform: the rise of participatory innovation platforms in Finnish cities. Sustainability 8 (9), 922.
5. Asheim, B., Oughton, C., Lawton Smith, H., 2011a. Regional innovation systems: theory, empirics and policy. Region. Studies 45, 875-891.