1. Chizuko TAKEI -Bio- naoe.chizuko@ynu.ac.jp 2001 M.A., Area Studies, University of Tsukuba, Japan. 2005- (current) working as a librarian at Yokohama National University, Japan. 2012-(current) Master's program of Library, Information and Media Studies, University of Tsukuba, Japan.

2. own research Collection development and management of electronic resources. Differences of characteristics between subjects.

3. challenging problems How do we develop journal backfiles effectively? How differ the obsolescence of citation and access by fields?