在一個時間段內，與基準網站相關性較高的站點包括：
Chemical Abstracts Service, CAS, is the producer of Chemical Abstracts, SciFinder, and co-partner in operating STN International, all of which provide comprehensive, authoritative, and reliable
access to chemical and scientific information from databases covering topics such as chemistry, engineering, patents, medicine, and regulatory data. [國際網路] - www.*as.org - -
[國際網路] - www.doaj*.org - -
EBSCO Information Services is the world's leading subscription management agent. EBSCO Publishing provides EBSCOhost and other academic research databases to libraries and other institutions.[國際網路] - www.ebsc*.com - -
We are a not-for-profit membership organization for scholarly publishing working to make content easy to find, cite, link, and assess.[國際網路] - www.cro*sref.org - -
Scirus is the most comprehensive science-specific search engine on the Internet. Driven by the latest search engine technology, Scirus searches millions science-specific Web pages. Scirus has proved so successful at locating science-specific results on the Web that the Search Engine Watch Awards voted Scirus 'Best Specialty Search Engine' in***and***and 'Best Directory or Search Engine Website' Web Award from Web Marketing Association in 2004, 2005, 2006, and 2007[國際網路] - www.scirus*.com - -
Find what you want in a library near you with WorldCat, a global catalog of library collections.[國際網路] - www.*orldcat.org - -
[國際網路] - www.c*bi.org - -
RePEc is a central index of economics
research, including working papers, articles and software code[國際網路] - www.*epec.org - -
[國際網路] - www.proq*est.com - -
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