An entity-relationship diagram (ERD) in the third normal form for a publishing company that produces journal issues and articles for the following situation:
• Each article may have many authors, and each author may write many articles.
• An article may be found in only one issue, but each issue will usually contain many articles.
• Each article may have many topics, and each topic may be in many articles.
Identify relationships among the diagram entities as "one-to-one" and "one-to-many". Identify entities as "entity" or "associative entity".