5University of Oxford: facts and figures[EB/OL]. [2011-04- 26]. http ://www.ox.ac.uk/about the university/facts_and_fig- ures/ index.html .
6TAPPER T, SALTER B. Oxford, Cambridge and the chang- ing idea of the university[M]. Buckingham : Open Universi- ty Press, 1992:40.
7President's Science Advisory Committee. Scientific progress, the universities, and the federal government[R]. Washing- ton D C :The White House, 1960.