{"id":"002053881","type":"article","title":"The oldest rulers of Early Medieval Bohemia and radiocarbon data","publisher":"Cambridge University Press","publisher-place":"New York","pages":"1529-1542","container-title":"Radiocarbon, 62,6 (2020","author":[{"family":"Frolík","given":"Jan"},{"family":"Ringbom","given":"Åsa"},{"family":"Heinemeier","given":"Jan"},{"family":"Hajdas","given":"Irka"}],"issued":{"raw":"2020"}}