Scopus is a search engine containing abstracts of articles and book chapters in all subject areas. It also contains the references from and citations to those articles and book chapters.
First go to the article you already know, for instance by entering the author and some words from the title (select All fields); you may also limit to publication year.
If you click on the article your are given four options to find more literature:
Besides information about subject area and publisher, you will find data on the coverage by Scopus for each journal: