@book{Ratzek2015,
author = {Ratzek, Melanie and Hauenschild, Luisa von},
year = {2015},
language = {ger},
copyright = {http://www.fu-berlin.de/sites/refubium/rechtliches/Nutzungsbedingungen},
title = {Kodierregeln 1.4},
url = "http://dx.doi.org/10.17169/refubium-22403",
}