Held, A.A.HeldKlein, A.A.KleinRagwitz, MarioMarioRagwitzHaas, R.R.HaasResch, G.G.Resch2022-03-102022-03-102007https://publica.fraunhofer.de/handle/publica/354741en303600Innovative design options of renewable promotion schemes in the European electricity market - practical experiences with feed-in tariff systems and quota obligationsconference paper