International law — Relation to municipal law — Jurisdiction of courts — Acts performed by governmental authorities in pursuance of international obligations — Restoration of property of Hungarian origin by French authorities in Austria — Whether French authorities acted in name of Germany and in execution of directives of Allied authorities in Berlin — Whether acting on behalf of Austria in performing obligations under Hungarian Peace Treaty to which Austria not a party — Whether acting in execution of French obligations under Hungarian Peace Treaty to which France not a party — Whether within jurisdiction of French Administrative Courts — The law of France.