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2. Personal communication,
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4. , , “The Vasa's New Battle: Sulphur, Acid and Iron”, Vasa Studies 19, The Swedish National Maritime Museums, 2003, pp. 50–55.
5. and , Molecular detection of bacteria in the seventeenth-century warship, Vasa, in Proceedings of the 9th ICOM Group on Wet Organic Archaeological Materials Conference, Copenhagen 2004, 243–257.