Most of the databases the Library subscribes to offer either direct links to the full text of many of the articles they index or they use the "Discover" button to link you to other sources that have the full text.
Look for one of these full text icons at the bottom of both short and full citations.
If a direct link to the full text of the article isn’t available, you will find the Discover Full Text button in its place. Click on this button to search for the full text of the article in other databases to which UIUC subscribes.
This will open another window that lists online full text options for the title.
A word to the wise, this "Discover" service is not 100% accurate. If you are searching for online options for a journal title, always check the Library catalog or the Online Journals & Databases, which will list the online sources for that title.
If there is no online source for the full text of a journal, search the Library's online catalog for the journal title to discover what print holdings are available at Illinois.
If there are no online or print holdings at Illinois, place an ILL request for the article. Be sure you include complete information about the item, especially page numbers.