{"id":"001247938","type":"book","title":"Contemporaneous Alnus decline and the beginning of Iron Age cultivation in pollen stratigraphies from southern Finland","pages":"49-59","container-title":"Vegetation History and Archaeobotany, 12,1 (2003","author":[{"family":"Sarmaja-Korjonen","given":"Kaarina"}],"issued":{"raw":"2003"}}