[1] Fraunhofer Institute for Systems and Innovation Research, Breslauer Straße 48, 76139 Karlsruhe, Germany
[2] Technical Research Centre of Finland, VTT Electronics, Kaitoväylä 1, 90571 Oulu, Finland
[3] European Commission, DG JRC, Institute for Prospective Technological Studies, C/Inca Garcilaso, 41092 Seville, Spain
[4] Trilateral Research and Consulting, 12 Tybenham Road, London, SW19 3LA, United Kingdom