{"id":"001017797","type":"book","title":"De Romeinse castella te Valkenburg ZH","publisher":"Van Gorcum","publisher-place":"Assen/Maastricht","pages":"1-120","container-title":"Archeologie en oecologie van Holland tussen Rijn en Vlie","author":[{"family":"Groenman-van Waateringe","given":"W."}],"issued":{"raw":"1988"}}