@book{Knabe2009, author = {Knabe, Andreas and Rätzel, Steffen and Schöb, Ronnie and Weimann, Joachim}, year = {2009}, isbn = {978-3-941240-07-0}, language = {eng}, copyright = {http://www.fu-berlin.de/sites/refubium/rechtliches/Nutzungsbedingungen}, title = {Dissatisfied with life, but having a good day}, url = "http://dx.doi.org/10.17169/FUDOCS_document_000000003332", }