Many of the references will have DOIs as part of their information-if you're logged in with your MSU NetID and password, clicking on those DOIs should take you to the article, as well as present you with an option to download the full text. You can then upload the full text into the reference for reviewers to access.
There are ways to expedite this process.
You can export from the Full Text review to a citation management software like EndNote or Zotero, and have use their Find Full Text function to locate and attach full text to the citation. (As of April 1, 2023, this feature is not working well in EndNote. We are working to identify a solution).