3Carl Diehl.Innocents Abroad:American Students in German Universities,1810-1870 [J]. History of Education Quarterly,1976 16 (3):321-341.
4The American Council on Education(ACE).Students on the Move:The Future of International Students in the United States,Issue Brief October 2006 [DB/OL]. (2010-09-15).http://wwcw.acenet.edu/AM/ Templa te.cfm?Section=Whats_Hot& Template=/CM/ContentDisplay. cfm&+Contentl D= 18564.
5National Science Foundation,Division of Science Resources Statisties,Seientists and Engineers Statistical Data System (SESTAT) (2003)[DB/OL].(2010-09-15).http://sestat.nsf.gov.
6American Mathematical Society.2009 Annual Survey of the Mathematical Sciences (Second Report)[J].Notices of the AMS, 2010,57(7).
7NSF/NIH/USED/USDA/NEH/NASA.2008 Survey of Earned Doctorates [DB/OL]. (2010-09-04).http://www.nsf.gov/statisties/nsf 10309/pdf/tab 11 .pdf.
8NSF/NIH/USED/USDA/NEH/NASA,2008 Survey of Earned Doctorates [DB/OL]. (2010 -09 - 15).http://www.nsf.gov/statistics/nsf10309/pdf/tab33.pdf..
9NSF/NIH/USED/USDA/NEH/NASA,2008 Survey of Earned Doctorates [DB/OL]. (2010 -09 -15).http://www.nsf.gov/statistics/nsf 10309/pdf/tab35.pdf.
10Jean M. Johnson and Mark C. Regets.International Mobility of Scientists and Engineers to the United States--Brain Drain or Brain Circulation[J].SRS Issue Brief,1998.
