@book{Werland2015, author = {Werland, Stefan and Range, Claire}, year = {2015}, language = {ger}, copyright = {http://www.fu-berlin.de/sites/refubium/rechtliches/Nutzungsbedingungen}, title = {PolRess Policy Paper 7: Anreize für freiwillige Instrumente}, url = "http://dx.doi.org/10.17169/refubium-23439", }