code: def split_volume_from_journal(citation_elements):
      
      for el in citation_elements:
          if el['type'] == 'JOURNAL' and ';' in el['title']:
              el['title'], series = el['title'].rsplit(';', 1)
              el['volume'] = series + el['volume']
      return citation_elements
docs: Split volume from journal title
  
      We need this because sometimes the volume is attached to the journal title
      instead of the volume. In those cases we move it here from the title to the
      volume