code: def remove_b_for_nucl_phys(citation_elements):
      
      for el in citation_elements:
          if el['type'] == 'JOURNAL' and el['title'] == 'Nucl.Phys.Proc.Suppl.' \
                  and 'volume' in el \
                  and (el['volume'].startswith('b') or el['volume'].startswith('B')):
              el['volume'] = el['volume'][1:]
      return citation_elements
docs: Removes b from the volume of some journals
  
      Removes the B from the volume for Nucl.Phys.Proc.Suppl. because in INSPIRE
      that journal is handled differently.