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During excavation 2004 in Du Sang rock-shelter ( Kim Boi, Hoa Binh)
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The earliest amulet in fish form made from a big bird nail, which excavated in Du Sang rock-shelter (Kim Boi, Hoa Binh, Vietnam) in ca. 18.000 years ago
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Skull at Bach Dang poles excavation
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Studio via modern X-ray film to controle relationship between facial sorf tissues and facial bone (Project : Facial reconstruction for prehistoric human skulls)
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Hmong twisting hemp fibres (Hmong textile study)
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