Group Photo	Prof. Liangqian Li	Prof. Liangqian Li gave a report at Vietnam Academy of Science and Technolegy	Prof. Liangqian Li was working in northern Vietnam	Prof. Zhiyun Zhang at a vallidge in northern Vietnam, 2004
Prof. Zhiyun Zhang at Hai-long-bi, Vietnam	Prof. Zhiyun Zhang gave a report at Vietnam Academy of Science and Technolegy	Prof. Zhiyun Zhang in Northern moutains of Vietnam, 2004	Wang Zhongtao (王忠涛)