|
Déjà vu is a manually curated repository of duplicate citations found in several databases, including Medline.
The National Security Archive collects and publishes declassified documents acquired through the Freedom of Information Act (FOIA).
Zotero is a free, easy-to-use Firefox extension to help you collect, manage, and cite your research sources. It lives right where you do your work -- in the web browser itself.
|