1. Benzler, G., Wink, R.: From agglomerations to technology- and knowledge driven clusters: aeronautics cluster policies in Europe. Int. J. Technol. Manage. 50(3–4), 318–336 (2010)
2. Blanvillain, S., Hurard, C., Mazari, B., Degres, S.: On knowledge usage and innovation in aeronautics clusters management. J. Innovation Impact 7(1), 177–190 (2014)
3. Brem, A.: Frugal innovation-past, present, and future. IEEE Eng. Manage. Rev. 45(3), 37–41 (2017)
4. de Freitas Dewes, M., Dalmarco, G., Padula, A.D.: Innovation policies in Brazilian and Dutch aerospace industries: how sectors driven by national procurement are influenced by its S&T environment. Space Policy 34, 32–38 (2015). https://www.sciencedirect.com/science/article/pii/S026596461530014X
5. Hassen, T.B., Klein, J.-L., Trembly, D.-G.: Interorganizational relations, proximity, and innovation : the case of the aeronautics sector in Montreal Tarek Ben Hassen Centre de Recherche Sur Les innovations Sociales Université Du Québec à Montréal Juan-Luis Klein geography department and centre D. Can. J. Urban Res. 21(1), 52–78 (2012)