Rock mountain snail Cyclophorus, which is main food of the Hoabinhian cave dweller (Project : Zooarchaeology)

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

The most famous hoabinhian cave of Xom Trai (Lac Son, Hoa Binh, Vietnam)

Studio via modern X-ray film to controle relationship between facial sorf tissues and facial bone (Project : Facial reconstruction for prehistoric human skulls)

PEG-treating in conservating a dongsonian dugout log coffin of 2300 years old