10.500 years old chared fruit stone fragments of Canarium fruit as food remains excavated in the Hoabinhian cave of Con Mong (Thanh Hoa, Vietnam)
The S.E.M image to look for prehistoric bacterien from a Dongsonian ramie cloth fabric.
PEG-treating in conservating a dongsonian dugout log coffin of 2300 years old
A silk fragment with weaving design excavated from 18th mandarin's tomb (Project : Ancient Textile in Vietnam)
Transpoting a dongsonian dugout log boat coffin to the Museum - case of cooperation with australien collegues from ANUniversity and ANMuseum 2004