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APA Citation
Knapp, H., Nelle, O., & Kirleis, W. (2015). charcoal usage in medieval and modern times in the Harz Mountains Area, Central Germany: Wood selection and fast overexploitation of the woodlands. Quaternary international, 366, 51–69. http://access.bl.uk/ark:/81055/vdc_100056227805.0x000001