{"id":"001058699","type":"book","title":"Jan Hendrik Holwerda and the adoption of the three-age system in the Netherlands","publisher":"Faculty of Archaeology, Leiden University","publisher-place":"Leiden","pages":"1-13","container-title":"Between foraging and farming : An extended broad spectrum of papers presented to Leendert Louwe Kooijmans","author":[{"family":"Verhart","given":"Leo."}],"issued":{"raw":"2008"}}