{"id":"002017032","type":"article","title":"Annual 14C tree-ring data around 400 AD","publisher":"Cambridge University Press","publisher-place":"New York","pages":"1305-1316","container-title":"Radiocarbon, 61 (2019), 0033-8222","author":[{"family":"Friedrich","given":"Ronny"},{"family":"Kromer","given":"Bernd"},{"family":"Sirocko","given":"Frank"}],"issued":{"raw":"2019"}}