Raven, R., Heiskanen, E., Lovio, R., Hodson, M., & Brohmann, B. (2008). The contribution of local experiments and negotiation processes to field-level learning in emerging (niche) technologies : meta-analysis of 27 new energy projects in Europe. Bulletin of Science, Technology and Society, 28(6), 464-477. https://doi.org/10.1177/0270467608317523