Find your source in the EBSCO Multisearch below and click the author's name.
OR
Search for the author's last name and possibly first name in the author field of a relevant database (for articles) or the library catalog (for books).
Find your source in appropriate databases and click the links for the subject headings or author keywords.
You may need to include additional terms to narrow the search appropriately.
Follow citation trails backward in time by looking at the who they have cited in the list of references at the end of your good source.
Follow citation trails forward in time by looking at who has cited them in Web of Science (not just for science) or Google Scholar.