Research of Development of Agricultural Knowledge Service in China. - Junfeng Zhang; Cuiping Tan; Huaiguo Zheng; Sufen Sun; Feng Yu 004 (CCTA, 2009)

A Metadata Based Agricultural Universal Scientific and Technical Information Fusion and Service Framework. - Yunpeng Cui; Shihong Liu; Sufen Sun; Junfeng Zhang; Huaiguo Zheng (CCTA (1), 2010)