@book{Conrad2000,
author = {Conrad, Jobst},
year = {2000},
language = {eng},
copyright = {http://www.fu-berlin.de/sites/refubium/rechtliches/Nutzungsbedingungen},
title = {Environmental Policy Regulation by Voluntary Agreements},
url = "http://dx.doi.org/10.17169/refubium-23238",
}