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A Word About Document Types
Neither primary nor secondary articles are easy to isolate during database searching. Most databases do not identify primary articles as such.
Review articles may be identified as such or as "historical" articles and can sometimes be isolated in scientific databases by selecting the "review" article (or similar) option on advanced search screens. However, because not all review articles are identified, many important articles can be missed using this method. Doing a keyword search for "review," "systematic review," "review article," etc., is another way to find review articles.
Where to Find Primary and Secondary Sources in the Sciences
The following are just three of the science databases available through Dickinson's library. They contain both primary and secondary literature. For additional databases see the Databases list or Research Guides for the individual sciences taught at Dickinson.
General Science EBSCO This link opens in a new window
Search everything from supernovas to marine pollution. This collection is a good starting point for researchers seeking information on a variety of scientific topics. Coverage: 20th century to present. Some full text.
PubMed (with Dickinson links) This link opens in a new window
Search for biomedical articles from several National Library of Medicine resources, including MEDLINE, life science journals and ebooks. This special version of PubMed includes Dickinson library's "Get It" links to additional full text. Coverage: late 1700s to present. Some full text.
ScienceDirect This link opens in a new window
Access articles in journals published by Elsevier focusing on science, technology and medicine. Coverage: varies - some 1850 to present. Some full text.