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NCSTRL

计算机科学研究报告和论文

http://www.ncstrl.org/

美国数学学会(AMS)的三种免费期刊 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/

Physics Today

美国物理学会(American Institute of Physics)提供的免费杂志

http://www.bioscience.org/current/currissu.htm

Science Magazine

http://intl.sciencemag.org/

Scientific American

http://www.sciam.com/

ACM Digital Library

http://portal.acm.org/dl.cfm?col ... mp;CFTOKEN=55845540