@book{Volkery2003,
author = {Volkery, Axel and Jacob, Klaus},
year = {2003},
language = {ger},
copyright = {http://www.fu-berlin.de/sites/refubium/rechtliches/Nutzungsbedingungen},
title = {Pioneers in environmental policy-making},
url = "http://dx.doi.org/10.17169/refubium-23254",
}