#serial_publication__series__serial  a periodical that appears at scheduled times
  supertype:  periodical  a publication that appears at fixed intervals
  part:  installment.textual_matter
  member:  issue.periodical
  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

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