{"id":"001383051","type":"article","title":"Coin Stock and Coin Circulation in Birka","publisher":"Aarhus University Press","publisher-place":"Aarhus","pages":"227-244","container-title":"Silver economies, monetisation and society in Scandinavia, AD 800-1100","author":[{"family":"Gustin","given":"Ingrid"}],"issued":{"raw":"2011"}}