http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Kỷ yếu hội nghị Khoa Học & Công Nghệ lần thứ 9 (Đĩa CD)
Kỷ yếu hội nghị--Khoa học công nghệ