{"id":"001022284","type":"book","title":"The bog area of North Holland after AD 1000: crises and opportunities","publisher":"Van Gorcum","publisher-place":"Assen","pages":"121-132","container-title":"Medieval archaeology in the Netherlands. Studies presented to H.H. van Regteren Altena","author":[{"family":"Bos","given":"J. M."}],"issued":{"raw":"1990"}}