1Office of Management and Budget.Analytical perspective.Budget of the United States Government Fiscal Year 2005.2005.66.67.69，64
2JOHN MARBURGE.U.S.Science and technology trends and priorities for U.S.-foreign cooperation center for strategic and international studies.在战略与国际研究中心的讲话.Washington,D.C.May 21,2004.
32006 Federal R&D Budget Facts.from http://www.ostp.gov/.
