@incollection{,
address  = {},
author = {},
booktitle = {Bouquet-Delisle, Recueil 6},
keywords = {Deutschland; 9. Jahrhundert; Ludwig <Römisch-Deutsches Reich, Kaiser, I.> (781-840); Politische Geschichte},
pages = {455-632},
title={Ludovici Pii Imperatoris Diplomata},
uniqueid = {1400438},
url = {http://opac.regesta-imperii.de/id/1400438},
year = {1870}
}