“…Founded in June 1996 by Tsinghua University and Tsinghua Tongfang Holding Group, CNKI project has been dedicated to promote large-scale digitization of China knowledge resources and establish a platform for global dissemination and value-added services. With complete coverage of China journals, doctoral dissertations and master theses, newspapers, conference proceedings, yearbooks, reference books, encyclopedias, patents, standards, scientific and technological research findings, laws and regulations, "China Integrated Knowledge Resources Database" is the most comprehensive knowledge system that integrates 90% of China knowledge and information resources 7 . CNKI is a non-OA platform, authorization is required to use its service.…”