@incollection{,
address  = {},
author = {Heath, Christopher; Houghton, Robert},
booktitle = {Conflict and Violence in Medieval Italy 568-1154},
keywords = {},
pages = {11-61},
title={Introduction. Discordant Minds and Hostile Nations},
uniqueid = {2835583},
url = {http://opac.regesta-imperii.de/id/2835583},
year = {2022}
}