CHEN Yunwei1,2 TAO Cheng3 ZHOU Haichen4 ZHANG Zhiqiang1,2
1.Scientometrics & Evaluation Research Center(SERC), Chengdu Library and Information Center, Chinese Academy of Sciences, Chengdu 610041, China; 2. Department of Library, Information and Archives Management, School of Economics and Management, University of Chinese Academy of Sciences, Beijing 100190, China; 3. Bureau of Development Planning, Chinese Academy of Sciences, Beijing 100864, China; 4.College of Information Management, Nanjing Agricultural University, Nanjing 210095, China