{"id":"000029332","type":"book","title":"TRB and other C 14 dates from Poland : c. 4350-1350 BC and 800-900 AD ; Part B.- Wetteren","container-title":"Helinium ; 9.1969, S. 209-238 : 16 Ill. ; 1 Falttaf","author":[{"family":"Bakker","given":"J. A."}],"issued":{"raw":"1969"}}