Tackling River Pollution Ecologically: A Case Study on the Ji River of Gansu Province. - Anguo Qi; Lifang Qiao; Yongdong Sun; Lianfang Yao; Yichuan Zhang; Weirong Luo (ESIAT (2), 2009)

Application of GIS Technology in Chinese Tourism. - Lifang Qiao; Yichuan Zhang; Wenjie Zhang; Da Mao; Lianfang Yao (ESIAT (1), 2009)