@book{Berger2005,
author = {Berger, Helge and Nitsch, Volker},
year = {2005},
isbn = {3-938369-04-3},
language = {eng},
copyright = {http://www.fu-berlin.de/sites/refubium/rechtliches/Nutzungsbedingungen},
title = {Zooming out},
url = "http://dx.doi.org/10.17169/FUDOCS_document_000000000342",
}