@cds2hep_marc.over('<STR_LIT>', '<STR_LIT>')<EOL>def nonfirst_authors(self, key, value):
field_700 = self.get('<STR_LIT>', [])<EOL>field_701 = self.get('<STR_LIT>', [])<EOL>is_supervisor = any(el.lower().startswith('<STR_LIT>') for el in force_list(value.get('<STR_LIT:e>', '<STR_LIT>')))<EOL>if is_supervisor:<EOL><INDENT>field_701.append(_converted_author(value))<EOL><DEDENT>else:<EOL><INDENT>field_700.append(_converted_author(value))<EOL><DEDENT>self['<STR_LIT>'] = field_701<EOL>return field_700<EOL>
Populate ``700`` MARC field.

    Also populates the ``701`` MARC field through side-effects.