{{cite web | url=http://www.europeana.eu/resolve/record/08547/908345CA46EFDA40C1A9446F90C8A449B756C613|title=Postkarte|author=Eschebach & Schaefer (Verlag)|accessdate=2013-05-25 |publisher=Europeana}}

<ref>{{cite web | url=http://www.europeana.eu/resolve/record/08547/908345CA46EFDA40C1A9446F90C8A449B756C613|title=Postkarte|author=Eschebach & Schaefer (Verlag)|accessdate=2013-05-25 |publisher=Europeana}}</ref>