{"id":"001555934","type":"article","title":"Aachen and Cologne in Carolinigian and Ottonian Times and the Viking Raids","publisher":"Archaeological Research Laboratory, Stockholm University","publisher-place":"Stockholm","pages":"183-194","container-title":"New Aspects on Viking-age urbanism, c. AD 750-1100","author":[{"family":"Ristow","given":"Sebastian."}],"issued":{"raw":"2016"}}