Archaeological research on the tombs of han dynasty in the northern China Archaeological research on the tombs of Han dynasty in Nanyang area 并列题名：Archaeological research on the tombs of Han dynasty in Nanyang area Archaeological research on the societies of the late prehistoric Xinjiang Archaeological research on the highland Silk Road from prehistoric times to the Tang Dynasty Archaeological research on the Qin Shi Huangdi mausoleum 并列题名：Archaeological research on the societies of the late prehistoric Xinjiang