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1बोधानक: S 13999पुस्तक
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2द्वारा Todtenhaupt, Dieter, Kurzweil, Andreas
में प्रकाशित Proceedings of the First International Symposium on Wood Tar and Pitch : held by the Biskupin Museum (department of the State Archaeological Museum in Warsaw) and the Museumsdorf Düppel (Berlin) at Biskupin Museum, Poland July 1st - 4th 1993 / ed. by Wojviech Brzezinski ... - Warszawa, 1997. - S. 97-114 : zahlr. Ill., Kt. (1997)बोधानक: D 1399 / 128लेख