On the imperial clansmen system of the west and east Jin dynasties On the calendric system of Qin and early Han Dynasties Imperial seals of the Ming and Qing dynasties 并列题名：Imperial seals of the Ming and Qing dynasties Imperial tombs of the Ming and Qing dynasties 并列题名:Imperial tombs of the Ming and Qing dynasties Study on the funeral rites and society of the Wei-Jin, southern and northern dynasties Research on the burial ritual system in the Southern and Northern Dynasties Imperial Palace of the Ming and Qing Dynasties Study of land tenure system in the Qin and Han Dynasties