Whether full text of an article is available freely over the Internet varies by the journal, the year, and even by article within an issue. If UNC subscribes to the journal, then the full text can be obtained through the UNC campus network. Anyone with a UNC Onyen or NC AHEC privileges can access such articles by connecting through the UNC Libraries proxy server. For many of the links in the Library of Resources the URL includes the proxy server so that persons with a UNC Onyen can use that link whether on or off campus. However, someone without a UNC Onyen may need to delete the proxy server segment of the URL in order for the link to go to the article (at least the abstract) rather than the login screen.

For example, here is the URL for the table of contents for the 3/6/2015 issue of Science magazine:
http://www.sciencemag.org.libproxy.lib.unc.edu/content/347/6226.toc

The URL without the proxy server component is:
http://www.sciencemag.org/content/347/6226.toc

Either URL can be used to access the table of contents, but with the former URL plus Onyen or AHEC authentication, the user can simply click full-text links and access the article. The latter URL provides access to the table of contents to anyone, but full-text articles may or may not be available.