Did you come across a paper that references an author's research? You can search by author to find his or her works. The search tool also helps you fine-tune your results. A researcher may have his or her own papers as well as have mentions in other authors' papers. If you want to review papers that mention Einstein, then use [einstein -author:einstein]. This returns all papers with Einstein mentioned, but not where he's the author. But if you want to see papers written by Einstein, then use [author:einstein].
You can also narrow your results by an author's first name or initials. Many papers may only reference initials. In this case, try [author:"a smith"], [author:"albert smith"] or [author:"albert b smith"].
If you want to limit search results to a specific publication, you'll need to use the Advanced Scholar Search page as the next image shows. The advanced search tool covers author, publication, date and subject areas.