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- [5] National patterns of R&D resource:1998 dataupdate. MARK BOROUSH. http://www.nsf.gov/statistics/nsf99335/ . 1999
- [6] National patterns of R&D resources:2008 dataupdate. MARK BOROUSH. http://www.nsf.gov/statistics/nsf10314/tables/tab5.xls . 2010
- [7] Federal funds for research and development:Fiscal years2008–10. MICHAEL YAMANER. http://www.nsf.gov/statistics/nsf12308/tables/tab116.xls . 2012
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