@book{Jessen2015,
author = {Jessen, Robin and Rostam-Afschar, Davud and Steiner, Viktor},
year = {2015},
language = {eng},
copyright = {http://www.fu-berlin.de/sites/refubium/rechtliches/Nutzungsbedingungen},
title = {Getting the poor to work},
url = "http://dx.doi.org/10.17169/refubium-23223",
}