1. Interview with European Affairs consultant (2014) the interview took place in Brussels, at the consultancy office.
2. Interview with European Commission official, DG Energy (2013) the interview took place in Brussels, at DG Energy.
3. Interview with European Parliament official 3 (2013) the interview took place in Brussels, at the European Parliament.
4. Interview with former officer at the German Marshall Fund, Brussels office (2013) the interview took place in Brussels, at Cafe Elvis.
5. Interview with industry consultant 1 (2013) the interview took place in Brussels, at the consultancy office.