1. Determination of density;Bauer,1949
2. C.G. Bjørdal, in: Waterlogged Archaeological Wood. Biodegradation and Its Implications for Conservation, unpublished PhD thesis, Swedish University of Agricultural Sciences, Uppsala, 2000.
3. The conservation of waterlogged wood in the National Museum of Denmark;Christensen,1970
4. D. Gregory, P. Jensen, The importance of analysing waterlogged wooden artefacts and environmental conditions when considering their in situ preservation. The Journal of Wetland Archaeology, in press.
5. Cell-wall densities for Cocos nucifera and Pinus radiata;Jensen,1979