@book{Hetschko2014,
author = {Hetschko, Clemens and Knabe, Andreas and Schöb, Ronnie},
year = {2014},
language = {eng},
copyright = {http://www.fu-berlin.de/sites/refubium/rechtliches/Nutzungsbedingungen},
title = {Looking Back in Anger?},
url = "http://dx.doi.org/10.17169/FUDOCS_document_000000020251",
}