1. Angot J (2010) Customer-integrated business models : a theoretical framework. Management 13:226–265
2. Avital M, Bjorn-Andersen N (2012) The value of open government data: a strategic analysis framework. In: SIG eGovernment pre-ICIS Workshop, no. 2002
3. Bekkelund KJ (2011) Succeeding with freemium. Norwegian University of Science and Technology, Trondheim
4. Bonina CM (2013) New business models and the value of open data: definitions , challenges and opportunities, London
5. Boons F, Lüdeke-Freund F (2013) Business models for sustainable innovation: state-of-the-art and steps towards a research agenda. J Clean Prod 45:9–19