There are a number of ways to retrieve the full-text or PDF of an article when you have a citation.
Remember the different parts of a citation, such as:
Using Citation Linker
Using DOI or PMID
Be aware, thess steps may not work for some journal articles! Have a look at the manual process.
Using Journal name
Do you have the name of the journals?
If you are not able to locate the article, ask for assistance at the LC Deck, or make an ILL request.