{"id":"001555920","type":"article","title":"Birka's Defence Works and Harbour - linking one recently ended and no one newly begun Research Project","publisher":"Archaeological Research Laboratory, Stockholm University","publisher-place":"Stockholm","pages":"35-46","container-title":"New Aspects on Viking-age urbanism, c. AD 750-1100","author":[{"family":"Holmquist","given":"Lena"}],"issued":{"raw":"2016"}}