Transpoting a dongsonian dugout log boat coffin to the Museum - case of cooperation with australien collegues from ANUniversity and ANMuseum 2004
The dongsonian bronze drum excavated in burial field Dong Xa (Kim Dong, Hung Yen, Vietnam) in detail.
PEG-treating in conservating a dongsonian dugout log coffin of 2300 years old
The Dongson man with war axe on his shultern as handle of a bronze dagger of 2300 years old.
During excavation 2004 in Du Sang rock-shelter ( Kim Boi, Hoa Binh)