The statement of appeal shall contain, on pain of nullity:
1° For natural person plaintiffs: an indication of their surname, first names and domicile;
For legal person plaintiffs: an indication of their form, name and registered office and, in the case of administrative or judicial authorities, an indication of their name and the place where they are established;
2° For natural person defendants: an indication of the surname, forenames and domicile;
For defendants who are legal entities: an indication of their name and registered office and, in the case of administrative or judicial authorities, an indication of their name and the place where they are established;
3° An indication of the contested decision.
It shall be signed.