The author's name is often not provided. Authors are usually experts, often university researchers. Authors' credentials are usually included. Credibility Articles are generally evaluated by staff editors rather than experts in the field. In electronic format, it's more difficult to distinguish between magazines and journals.
Articles are usually longer.
Bibliographies or references are listed. Charts and graphs are frequently included. Journals often include book reviews, editorials, and news updates, etc. that do not qualify. Austin Community College, Learning Resource Services, 1997-1999.