#periodical  a publication that appears at fixed intervals
  supertype:  #publication  a printed work offered for distribution
  subtype:  #digest  a periodical that summarizes the news
  subtype:  #pictorial  a periodical (magazine or newspaper) containing many pictures
  subtype:  #serial_publication__series__serial  a periodical that appears at scheduled times
     subtype:  #monthly  a periodical that is published every month
     subtype:  #quarterly  a periodical that is published every quarter
     subtype:  #weekly  a periodical that is published every week
  subtype:  #organ.periodical  a periodical that is published by a special interest group; "the organ of the communist party"
     subtype:  #house_organ  a periodical published by a business firm for its employees and customers
  subtype:  #issue.periodical__number  one of a series published periodically; "she found an old issue of the magazine in her dentist's waitingroom"
     subtype:  #edition.issue  an issue of a newspaper; "he read it in yesterday's edition of the Times"
  subtype:  #journal  a periodical dedicated to a particular subject; "he reads the medical journals"
     subtype:  #annals  reports of the work of a society or learned body etc
  subtype:  #review.periodical  a periodical that publishes critical essays on current affairs or literature or art
     subtype:  #literary_review  a review devoted to literary criticism

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