@book{Gerhards2011,
author = {Gerhards, Jürgen and Hans, Silke},
year = {2011},
language = {eng},
copyright = {http://www.fu-berlin.de/sites/refubium/rechtliches/Nutzungsbedingungen},
title = {Why not Turkey?},
url = "http://dx.doi.org/10.17169/refubium-21953",
}