articles are written by scholars in an academic or professional
field. An editorial board reviews articles to decide whether they
should be published, which makes these articles "peer-reviewed"
or "refereed." Journal articles may cover very specific topics
or narrow fields of research.
are published at periodic intervals, they are grouped in the category
called "periodicals." They may be in print format or on
the Internet as electronic journals. Your library purchases subscriptions
to many, but not all, journals.