5Elizabeth B. F,ete. Reference librarian at the reference desk in a learning commons: a mixed methods evaluation. The journal of academic librarianship, 2008,34 ( 3 ) : 231 - 238.
6Mary Ellen Spencer. Evolving a new model: the information commons. Reference Services Review. 2006,34(2) :242 - 247.
7Gary W White. Academic Subject Specialist Positions in the United States: a Content Analysis of Announcements from1990Through1998 . The Journal of Academic Librarianship, 1999 (5) :372-382.
