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Astrophysics Data System -- ÊÀ½ç×î´óÃâ·ÑÈ«ÎÄÍøÕ¾£¬³¬¹ý300,000ƪȫÎÄ
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http://adswww.harvard.edu/

2. HighWire Press -- ÊÀ½çµÚ¶þ´óÃâ·ÑÈ«ÎÄÍøÕ¾£¬³¬¹ý235£¬812ƪȫÎÄ
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http://intl.highwire.org/

3. arXiv.org
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http://arxiv.org/

4. Behavioral and Brain Sciences
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http://www.cogsci.soton.ac.uk/bbs/

5. Centers for Disease Control and Prevention (CDC)
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http://www.cdc.gov/

6. CogPrints
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http://cogprints.soton.ac.uk/

7. GPO Access
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http://www.access.gpo.gov/su_docs/databases.html

8. Inter-university Consortium for Political and Social Research (ICPSR)
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http://www.icpsr.umich.edu/index.html

9. National Academy Press
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http://www.nationalacademies.org/publications/

10. National Center for Health Statistics (NCHS)
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http://www.cdc.gov/nchs/

11. NCSTRL
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http://www.ncstrl.org/

12. Project Gutenberg Electronic Public Library
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http://promo.net/pg/

13. Thomas Legislative Information on the Internet
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http://thomas.loc.gov/

14. UNESCO
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http://unesdoc.unesco.org/ulis/

15. United States Geological Survey
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http://www.usgs.gov/

16. World Development Sources (World Bank)
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http://www-wds.worldbank.org/

17. Delphion
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http://www.delphion.com/boolquery

18 ÃÀ¹úÊýѧѧ»á(AMS)µÄÈýÖÖÃâ·ÑÆÚ¿¯
Bulletin
http://www.ams.org/journals/bull/

Electronic Research Announcements
http://www.ams.org/journals/era/

Notices of the American Mathematical Society
http://www.ams.org/notices/

19 Physics Today
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http://www.bioscience.org/current/currissu.htm

20 Frontiers in Bioscience
ÉúÎï¿ÆÑ§ÆÚ¿¯ºÍͼÊ飬ÎÄÕ±»Biosis¡¢CA¡¢MedlineµÈÖØÒª¶þ´ÎÎÄÏ×Êý¾Ý¿âÒýÓÃ
http://www.bioscience.org/current/currissu.htm

21 The World Wide Web Journal of Biology
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http://www.epress.com/w3jbio/vol5.htm

22 Science Magazine
http://intl.sciencemag.org/

23 Scientific American
http://www.sciam.com/

24 ACM Digital Library
http://portal.acm.org/dl.cfm?col ... 31&CFTOKEN=55845540
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