{"id":"001401897","type":"book","title":"New insights into tabular and red Heligoland flint by means of thin sections and SEM/EDX analyses","publisher":"Leidorf","publisher-place":"Rahden/Westf","pages":"45-58","container-title":"Marschenratskolloquium 2012","author":[{"family":"Kruyk","given":"Hans de"}],"issued":{"raw":"2014"}}