@book{,
address  = {},
author = {Nygaard, Simon},
editor = {},
keywords = {20. Jahrhundert; Bibliographien; Geschichtsschreiber},
series = {},
title={[Bibliographie]},
uniqueid = {2272522},
url = {http://opac.regesta-imperii.de/id/2272522},
year = {2016}
}